The 3 Swing Checkpoints
The three positions we check on every hitter we coach — how to see them, how to tell which one broke, and what to do about it. Watch the replay free.
Free · Replay + the hitting guide, sent to your inbox
Free, and actually free
No card, no trial, nothing to cancel
Taught by people who played
A pro contract offer and a 2× Gold Glove bat
Missed it live?
Ask for the replay below, free
A checklist your hitter can run without you
Most young hitters have been given ten cues and can hold onto none of them. We teach three. Few enough to remember in the box, specific enough to self-diagnose.
The three checkpoints, on video
The exact three positions we check on every hitter we coach — shown on real athlete footage, slowed down far enough that you can actually see them.
How to tell which one broke
A hitter in a slump almost always has one checkpoint slipping, not three. You will leave able to look at a swing and name which one it is.
What the numbers really mean
Bat speed, exit velocity, rotational acceleration — what each one tells you, what it does not, and which is worth chasing at your player's age.
Two drills per checkpoint
Six drills total, each tied to a specific checkpoint, each with the one thing to watch for. No equipment you do not already own.
What to do with twenty minutes
How to structure three short sessions a week so practice at home is development instead of repetition.
Live Q&A with Connor and Zane
Bring a question, or send your player's swing video ahead of time and we will break it down live on the call.
Connor and Zane, for 75 minutes
The same two coaches who run our hitting groups in St. Louis — teaching the same framework, just with a camera instead of a cage.
Connor Jenkins
Founder & Lead Instructor
- Founder, Movement 4 Power · HS Director, Southside Prospects
- Former Division I commit · St. Louis Community College
- Offered a non-drafted free agent contract — Milwaukee Brewers
- Driveline Education certified
Founder of M4P. Connor played his college ball at St. Louis Community College, was a Division I commit, and was offered a non-drafted free agent contract by the Milwaukee Brewers. He is Driveline Education certified and the High School Director for Southside Prospects, and he builds every M4P assessment, evaluation report and program himself — structured, data-driven development for baseball and softball athletes across St. Louis.
Zane Roos
Hitting, Fielding & Performance Instructor
- Cameron University graduate — led the country in batting average and RBIs
- 2× Conference Gold Glove · 1st Team All-Conference & All-District
- Signed to play professionally — independent club, California
- Career: .343 AVG · 12 HR · 57 RBI · .455 OBP
- Assistant coach, Southside HS
A 6-foot-3 corner athlete from St. Louis, Zane came up through Lindbergh High School and St. Louis Community College and finished at Cameron University, where he led the country in batting average and RBIs. A two-time Conference Gold Glove winner with a career .343 average, he signed in spring 2026 to play professionally with an independent club in California, and he is an assistant coach for Southside HS. He brings elite defensive instincts and a complete-hitter approach to his instruction.
Why we give this away
Free
Because the fastest way to show a family how we coach is to coach. If the three checkpoints are all you ever take from us, that is a good night's work.
75 minutes of instruction, on replay
The three checkpoints on real swing video
Six drills, two per checkpoint
The Q&A from the live night
Watch it as often as you like
The M4P Hitting Development Guide (PDF)
And if you want more than an hour
We will show you where to start at the end — a $50 assessment in St. Louis, a $59 four-week program you can run anywhere, or monthly training. Never on the call, and never a condition of being there.
This is the framework we actually use
The three checkpoints are not seminar content invented for a webinar — they are what every M4P hitter is coached against, measured on Blast Motion and HitTrax, and re-tested every eight weeks.
What M4P parents say
5-star reviews on Google
★★★★★2 months ago
We first signed up with Connor in the Spring, within 3 lessons, my son was seeing the ball much better and making solid contact at the plate. … My son was on the verge of leaving baseball, before we met Coach Connor. Now every week, he happily asks “do we still have my lesson this Friday?”
★★★★★2 months ago
Our son is definitely hitting the ball with more power and further than he ever has, but most importantly, he is stepping up to the plate with confidence! His whole demeanor shifted after his first session with Connor and M4P.
★★★★★1 month ago
From day one, it was completely obvious that Andrew operates with a “kids-first” mentality. He has a gift for balancing high-level athletic training with a supportive, encouraging, and trusting environment where ballplayers truly learn and thrive. If you get the opportunity to have Coach Andrew work with your child, jump on it.
★★★★★1 month ago
My son has been going here, and in a short amount of time & has made so much progress! Not only that, he enjoys it! He's sees first hand things to work on with his mechanics & how to adjust. It's been game changer for him.
★★★★★1 month ago
Coach Andy is great! He's worked with a handful of my pitchers & hitters and was a huge part of my team's success this past season. Highly recommend sending your players to him.
★★★★★2 months ago
Connor and Zane have been a pleasure to work with. My son has shown a lot of improvement in his swing and we can't wait to see how much more he will continue to learn!
★★★★★2 months ago
Connor Jenkins and Zane Roos are amazing! My son loves working with them and it is definitely paying off. Logan has come such a long way in a short time with these coaches.
★★★★★1 month ago
Connor has been fantastic for our son. This really is an exceptional program focused on developing the right things.
★★★★★2 months ago
This program helped my son realize where the power in a swing comes from. Also broke down the basic mechanics and focused on them little by little. My son and I really do appreciate the way this develops you slow and steady not drastic changes in Hopes of big results.
★★★★★1 month ago
Andrew Zoellner is a passionate coach who puts everything he has into developing players into the best version of themselves they can be. His enthusiasm is very evident from the first time you meet him and his passion for training is unparalleled.
★★★★★2 months ago
I think my son has made a lot of improvements in a short time. Zane and Connor have been wonderful in working with him and are very knowledgeable. I think he's had a few hard sessions, mentally, but it has helped him a lot.
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Seminar FAQ
Is it actually free?
Yes. No card, no trial, nothing to cancel. Register with a name and an email and you are in. We run it because the fastest way to show a family how we coach is to coach.
Who is this for?
Parents, players and coaches — baseball and softball, roughly 8U through high school. Younger players get more out of it with a parent watching alongside them.
Does my player need to be there?
It works either way. Plenty of parents watch alone and bring one checkpoint back to the driveway. If your player is twelve or older, watching together tends to be better — you end up sharing the same language for the swing.
Are you going to sell me something?
At the end we spend about two minutes on what M4P does and how to start. That is it. The other seventy-three minutes are the seminar, and if you never buy a thing from us you still leave with the checkpoints and the drills.
Do I need any equipment?
No. It is a video and whiteboard session — you can watch it on a phone. If your player wants a bat in hand to try the positions, that is a bonus, not a requirement.
Watch it on your own time
The 3 Swing Checkpoints aired Thursday, September 24. Tell us where to send the replay and the hitting guide — both free, both yours to keep.
“Our son is definitely hitting the ball with more power and further than he ever has, but most importantly, he is stepping up to the plate with confidence! His whole demeanor shifted after his first session with Connor and M4P.”