Thank you all for the help. We had spent quite a few hours just trying to understand the dynamics of the problem, and with your help, I think we're moving closer to a solution for our particular mechanism. We were very close to independently developing something similar to
Team 1884's spurs but didn't quite hit this final mark. We tried a fixed pin, and a servo-moveable pin, but the spur looks like it just may be the perfect thing for us. Thank you 1884!
The one problem that still remains for us, is we don't have space in our existing design to use the spurs. You all have been generous in sharing what you have, so here is a picture of our setup, to receive some feedback and advice on. Sorry, I don't have a better picture of the feeding or a video, but they are pulled from the right side of the picture with a pneumatic cylinder with a wedge shaped hook. I'd still like to use the spurs, if we can somehow do it without remaking the whole shooter. I'm willing to remake the "hopper" if we need to. That's an easy fix.
Also, I'm still interested in seeing how others are doing it.