Here is what I was referencing.
The skate at the back has a tri-d chassis. The middle wheel is always in contact. Then either the rear or front wheel, but never both. This allows you to be up on your toes more. In the other skate all wheels are down.
This immediately caused him to feel back on his heels and changed his stride. It became a shorter stride.
Today I grabbed two of the stx. Fiddle stx and started working with Micah on throwing left as they had him throwing right at lacrosse class. He was throwing harder and closer to target immediately. Anyone who's boy plays lax which hand is his top hand. Micah is a lefty throws left, bats both, shots hockey right.