It was a joy building the B4.1 FT kit, my last kit was the sc10 4x4...YACK!
All the little upgrades really made the car drives/handles alot smoother than the RTR. Put the car thru its paces at ocrc, adjusting the ball diff and slipper, didin't have a single thing break on me, not even a pop ball cup! Reedy sonic is smooth as butta. The car is a little bit on edge, but I'm kind of used to it with the rtr so will wait before going with +8mm.
Thanx for the recommendation on the upgrade! Best $220.00 I've spent yet in RC...yes I got a great deal!