gearing the chips down 6:1 is your problem. I mean, that gives you flat RPM’s of close to 800 or so. with very little torque. We had ours geared down 60:1 or thereabouts. We were at stl also, maybe you saw us, team 1067, we flipped twice,
Well, we also use the drill motos in our drivetrain, but you needed to gear it down more.
As a driver I noticed early on that our robot was extremely uncontrollabe on the ramp having trouble getting up without spinning out or not making it up consistently happened. However during auto mode it would perform fine!!! So like some one said earlier the joystick/HUMAN DELAY was the problem. Our programmers killed that problem with the gyro. We use it to compinsate when ever we start turning too fast on the ramp making it easier to go up the ramp and even be able to turn on a dime, even when on the ramp. Conclusion your joysitck/human delay is the problem. Practice more or figure out a more controllable gearing for the robot.