Thanks, killrwheels, After this experience I think I will take the time to do sealant by hand. Get all the nooks and cranny's. Like (sensei) Mr. Miyagi taught ">sealant on-sealant off<"
joe p., thanks for telling me I was destroying my PC. I want to hang onto it forever. It did more work in one day than many of the tools I have owned for years.
Thanks guys for the cleaning tips also.