[cbale2000]

We used a 6 motor drive train (4 CIMs, 2 Mini-Bike Motors) back in 2006 on a similarly open field with no bumpers on the robot. We also built the frame out of solid sheets of 3/16" aluminum, needless to say we had no durability issues with the frame.

Rules that try to limit drive motors are really just limiting mechanism options, and rules putting a cap on drive system power will make inspections more complex, and likely longer.

The game animation for as long as I've been in FIRST has included the line "Robots should be built robustly", IMO teams simply need to design with robot durability in mind, otherwise the exciting contact sport that is FRC eventually becomes a dance recital.