I am way behind, but catching up! Camracer, I did not remember your cylindrical battery holder, but do remember the dynamite stick. Parrellax - the cell holder you showed is already wired in series? I want to do something like that. I really like the battery in the stock stuff you guys have done!
I agree with the tier of BBs. I think that is a must. I even use a series of several "layers" to keep the BBs from putting too much weight around the auger and shaker in my mags.
000000
000000000000000
-----------00000000
0000000000
0000000000000
00000-------------
00000000000
----------00000000
000000000
===AUGER-AUGER
I am not sure if that will make sense, but the circles are bbs, the lines are the baffles, and the auger is at the bottom.
TBK