Bests & Worsts Reviews from Amazon

This clay bar DESTROYED my brand new Model 3 clear coat. Buyer beware! Using a new (literally opened from the package) bar of this cheap clay, the results were literally as bad as sandpaper. My prep steps: 1- Thorough wash using CarPro Reset 2- IronX bath 3- Another wash with Reset 4- Applied clay in 2x2 area 5- Rinsed to prep for polishing 6- Dried with air blower While claying, I used tons of extra lubricant, kneaded the clay after every 2x6" pass and didn't use excessive pressure. I have followed this routine for years and never had a problem. When the area dried it literally looked like 500 grit sandpaper had been used. How is this even possible with a new clay bar using a well-accepted method that never failed me before? The only thing I can think is poor quality control on the manufacturers side, and for that (and the immense frustration this product caused) one star is GENEROUS. Yeah, maybe I just got a bad batch and under normal circumstances it would have worked fine... but this is my first and last experience with their clay. That said, it brings quality into question regarding the rest of the Mothers lineup so it's the last time I will buy any of their products.