Wow Don. Glad you are alright, at least for the most part. Yeah, I purchase my 4 inch ones from HF. I already know the reputation of the source, so I am VERY careful, but for years haven't had a single incident. They even come in 40 and 55 grit with two different thicknesses. But I am very careful because there is no way you could call it safe to have a composite wheel spinning at that fast rpm.
