I would highly recommend spending the time to just make a shooter twice as fast, its probably a more worthwhile exercise. Building a shooter that can shoot 4 discs in ~1.5sec is a challenging exercise that will stretch your iteration skills and programming talent. Every year the thing that separates the best teams from the rest is how quickly they can score, learning how to continuously iterate on your scoring mechanism to make it faster/more effective is a very important skill for any FRC Team.
Between Waterloo and Champs our mechanical and programming teams spent weeks iterating on a new shooter for champs. Using two mini CIMs instead of originally one, we iterated on everything from different speed control algorithms, to hopper designs to make sure the discs stack and fall properly into the shooter, new mechanism to pull the discs into the shooter wheel, and many iterations on the loading trey. This dramatically reduced our shooting time at the pyramid, and served us well at Champs...
