Originally Posted by John_S

The current range of ko propor servos are rather good (rsx range) along with the sanwa 801. I think low profile or standard doesnt matter you just have to make sure the car is good when you balance it. There arent really any issues with the build of the kit. The only tip to follow really is to dremel a flat on the driveshaft pins where the grub screw sits to help stop them coming loose.