The best option for someone that grinds on their own time, and doesn't want to miss a moment messing with resetting their foot placement.

https://zoned.store/products/p....ro-stantz?pr_prod_st

Rev Throw Pro : arm path trainer is a simple way to train the arm-path, a dynamic movement in the throwing motion.

https://zoned.store/collection....s/best-sellers/produ