Is this 34lbs as pictured?
I woud change the rectangular lightening pattern in the front into a triangular one, to preserve more strength, but that's just me.
Is that 15.35fps free speed or realistic?
I think you can get your gearbox lighter if you wanted to by adding a lightening pattern or just redesigning into a flipped-cim verison like 192 in 2014.
Ugh bumpers. I hate mounting bumpers to a WCD. It always looks so awkward (or weighs a lot) when I try.

I look forward to seeing those when you add them in.