Me and my brother (GUI) were wondering if you thought about bumpers for the front(?) two corners? We rechecked the rules on bumpers; <R08> A requires each segment to be at least 6" long, <R08> I requires all exterior corners to have bumpers, and <R08> M says the entire length of the bumper needs to be supported by the robot structure. I can't tell exactly what's going on there, so you may want to recheck those ones
Other than that, that's one beast frame!
I love the cheese-holing job! Is there a specific reason you kept the long and narrow orientation of the drive train?