Started claying my 2nd car, and am getting more familiar with technique. I prefer using much larger pieces, no smaller than 1/10th a bar. And I think I was a bit timid in my pressure. I applied a bit more pressure, and it seemed to go fine.
David, one thing I notice. I can clay a given 2'x2' area for a full minute, and it is as clean as possible. No rough portions at all, no scraping sound, nice and clean. Yet when I rub my fingers over it after drying, I still feel tiny tiny granules. Is this expected? Do I need a finer clay? The clay I'm now using is labeled "fine". Or is this just a matter of preference?
One thing I just did was use clay on my windows. WOW! On a 12.5 year old VW, I don't think they were that clean brand new!