okay, video didnt work out well but here's a high ass resolution picture of it:
http://img228.imageshack.us/img228/8643/imgp0587.jpg
Sorry for the shitty focal length, only lens I had handy..
Anyhow, just for kicks I put the piston in part way as shown in the pic and tried to close the gearbox. Couldnt even get it closed.. It's actually touching the flat portion of the sector gear and when I try to close it up like that, it pushes the sector gear down and then the bearings dont line up.
So yeah, definitely seems like the teeth are just too low. It's like this on the Modify 22.2:1 torque up gears and the King Arms 18:1 normal torque gears.
Did I just get a bad piston.. or.. something? Or does SRC use non-standard pistons with shorter teeth......?