I have the ATI on a Rossi single shot. It is the triple barrel youth package they have, so it is on a .22, .243, and 20ga. With the rubber slip on pad that is matched to it, none of these rounds is anything but a pleasure to shoot. From the looks, it would be easy to use most any slip on pad.
I really like the stock, my 7yr old, 9yr old, or myself can quickly adjust and shoot the rifle.
I am currently deciding between that one, and the youth synthetic for a 357Mag/Max (planning on reaming the chamber soon) H&R I am working on.
--Carl