So, many shooters are gravity fed, and some use an elevator, but if the balls don’t come in a nice single-file line, how do you stop clogging without using up any more vectors? if you have funnel, there’s bound to be a time when 2 balls get stuck/clogged, does a quick shake solve this? how do (if you can) avoid this, and how common is it?
pictures will be greatly appreciated 
Without using an extra victor, you’d have to radically redesign your hopper to be spiral-shaped or similar. We, on the other hand kept our giant-box style hopper and installed … The Coffee Can of Doom! It’s a coffee can bolted to a window motor on the bottom of the hopper. It keeps the balls agitated amazingly well for its simplicity. However, if you want to copy that, you better not use a coffee can, because we are currently the only robot with MaxWell House parts. 
We just have to do a quick wheely or two to unjam our hopper. During the matches, though, we ended up doing more defending than collecting, so we never really had to unjam our hopper.
I’m disappointed. I was so looking forward to a vigorous discussion of wooden shoe dancing.
We have a thing we call “the hopper flopper” Its a long bent up hollow rotating rod that agitates the balls.