Great saying and tee shirt quality.

more high effort throws Less fatigue Train and throw with better intensity - increases velo steadily thru reps you would-be get normally and over speed training Helping me get better

Very good product

The book has the info that I've been learning from the YouTube channel. The book is simple and easy to follow along. I hope to make the big leagues and play as long as I can.

Fantastic customer service!

Game changer of a product - light up the hip flexors and save my back !

Our hitter won the Home Run Derby at the 2019 10U NorCal State Championship. His reputation has now earned him lots of junk pitches, and the Backspin Tee with angle attachment is helping build “line drive” confidence with pitches around the edges of the zone.

Good quality, speedy service and shipping.

Excellent information for a coach. Just what a coach needs to teach their students the correct swing. Highlt recommend.

Nice shirt,just got it yesterday..

I think every coach and parent should own this book. Teaching a child how to hit based on science and physiology evidence rather than “old school” advice is the only way to go.

Great looking, high quality tshirts!

Good relatively easy reading through chapter 4. Somewhat heavy on the why the REAL science is so great.

Really good read.

I recently purchased a WhipStick for my 12 yr old.We have been mainly using it for the heavy bat for overload/underload drills.His bat speed and exit velocity has increased significantly.I would highly recommend the WhipStick for increased bat speed.

Great design. Great message. Comfortable shirt. I wear it often.

Applying human movement principles validated by REAL Science. Supported by swing experiments and data. Positive case study after case study. Fantastic stuff!