I was detailing a 2007 Yukon, and the owner asked a question that truly stumped me. He asked for my opinion on the Turtle Wax "Clay Bar" and liquid ice. Since I never in my life used the stuff, I figured I might ask you guys what your opinion was of this stuff. The last time I clayed a vehicle, I used some yellow clay from Mothers. Worked well, but since then I have not been able to find some more yellow clay. Anyway, I digress... What say you guys on this new stuff?