[GRT808]

During the six week build season we had a double axle shooter nearly identical to the one you described. However, although it could shoot balls across the field it also was very inaccurate. We slapped together a hood in about three hours from the KOP and some polycarbonate, no fancy or precise measurements, an installed it in our robot at SD regional. It worked beautifully and launched us into the position of highest scoring robot (not including the bonus) at the competition. We used a bit of PID for a preset speed but other than that our driver used dead reckoning which worked because the shooter was so consistent. I also noticed that us and Code Orange (another stationary shooter that scored high) scored much faster than the turreted shooters (probably won't stay like this in the coming weeks).

If you can go with a hood I'd highly suggest it.