[cbale2000]

Back in 2006 our bumper-less Tank Drive aluminum frame robot used a 6 motor drive (two large FP CIMs and 4 normal CIMs); We played lot of defense and offense (the advantage of the drive in either case being that you can push other robots out of your way).
The only time we ever had an issue with damage on the robot was one match where the front cross support got bent because the robot rammed into one of the ramp side guards too hard. We bent the beam back into place and played the rest of the matches without incident.

Frankly, IMO, robots were much higher quality back when they actually had to be designed to take a beating, and the matches were much more interesting with defense as a viable strategy.