Ran my R3 last weekend with 55g of lead in
No Titanium, pure stock cuda ...
KoProPo 2123 servo, Cirrus ESC, and KoProPo micro reciver.. ohh and Fukuyama Mako stock motor.
If you run mod you proberly don't need to add so much weigh to to the car ..
All Cuda drivers here run rubber and need to add weight to the car regardless of shell and equipment