Not only was it hard to put that pin in, but it was even more difficult taking it out! I forgot to put the thin metal spacer behind the wheel nut and had to pry on the plastic nut as well as the pin with pliers to get it out. I was thinking about reaming the hole out a bit with my dremel but I'll wait on that.

I didn't have too many problems with the kit except the fit of the rear A-arms was weird I thought. Definitely doesn't look straight until the wheels are on, not the same as the picture in the manual. Also, a screw was improperly machined. There were no threads on it so I had to find a replacement, I thought that was a bit odd too.

I hear where you're coming from on the brushless system. I've never driven a brushed motor or any electric cars though so I don't know what to expect in terms of maintenance or performance benefits of a brushless system. If anyone could compare the two I might have to look at some brushless setups such as the novak SS5800. And who else makes brushless setups?