If there could be a chink in VPs line up, it might be their hardware. I have a few sets of good hex tools. Some Losi, both standard and metric, and some Wera allen keys. Its not my drivers. I could not find a driver that fit nicely. They were all loose. I have never had this issue very often. Kit hardware and RCscrews are known for poor quality.
With the very high quality of your products, you should get better screws. Yah, yah I read a thread on this issue before. Its shop hardware that is used on other stuff you make. I think that was more of a comment about guys wanting metric heads.
Either way, the screws you use suck.
Don't get me wrong, I have every part you make for the XR10 and a couple sets of wheels. Its very high quality and I like it all. You even included Boca bearings with the tranny cases and motor plates. Get some nicer fitting hex hardware.
Keep up the great work.