[Joseph Smith]

Typically, the majority of teams will have at least 2 CIMs per gearbox, and those who want some extra power will add another CIM or miniCIM to each side. I can't speak much for the KoP gearbox, but we've had success with the vex ball shifter in the past. There are ways to shift without pneumatics- I believe team 67 used a window motor connected to a linkage one year. You can also shift with a servo, using a kit like this from Andymark http://www.andymark.com/Shift-p/am-0093.htm or by designing your own servo shifting mechanism.