[sdcantrell56]

Basically in a 6wd this year with a dropped center wheel, the front 2 wheels will be similar in functions to casters, just to keep the robot from slamming forward like has already been mentioned. The advantage of powering is that now when the robot rocks forward, the robot will still be distributing power to 4 wheels, versus if the front wheels were unpowered, only 2 wheels would have power but the friction force on those wheels would be half of the friction force that 4 powered wheels have to work with.