Yikes! That sucks Gregg!! I haven't driven on the stock tires yet, but I will say that the Road Rages from Pro-Line have taken a good bit of high speed runs with skids at the end, standing starts with all 4 spinning, etc. without too much wear. It's only been 3 batteries worth, though, and it's cold here so that hardens the compound a bit (and traction sucks!). I don't like how much they balloon, and I have two that are crooked. That said, I can do a full speed blast with an 1800kV motor, 21T pinion, and 6S battery without losing control.

I checked my center diff. So far so good. No leaking.

EDIT: Gregg, I checked mine, and they're close, but no contact. Looks like you had the B plate in correctly. Have any other pictures?

One other question, how was the cogging/stuttering?