Buttons underneath at the back - with my torque when you hold the marker by the snatch grip it is easy to accidentally activate the loader (or worse turn it off without noticing) with the side of your hand. Get the buttons out the way.
Having the buttons off the back plate would allow you to have a clear section on the rear of the loader to you can see how much paint you have left at a glance, and make the rest of the hopper solid/smoke so your opponent can't see how much you have left/time a run when you re-load. Have the clear back section and a clear raceway so you can imediately see jams (eliminates the "why's my gun stopped" running through your head). Torque's reverse button works well but add a rip drive or similar to manually feed.
Also Torque shells are solid as - hardly any have broken from what I hear.
Feed neck should be one piece like the Jrny, avoids stress fractures from over tightened feed necks.
Oh, and don't make it look crap
