The CRC pinions and spurs are really nice. I was using PRS for awhile but then the new spur gears from CRC and Xenon came out with 16 diff balls so I switched to them for spur gears. Since I had some pinions for my FGX from 3Racing that looked really nice I decided to give them a try for 64 pitch pinion gears as well since they are priced well. I've been quite happy with them.