I've found a really stupid thing with the RR. Kyosho have tried to copy Xray/Serpent with the way to mount the shocks. They have a long grub screw which goes into the A-arm leaving 4-5mm sticking out.
Then you have threaded balls to screw onto the grub screw. The only problem is that Kyosho forgot to put the 'hex' into the balls so there is no way to hold them whilst tightening!!!! This is a real major oversight by the Japanese
. I have had to resort to the VoneR method of using flat headed screws!