I am trying the Platin 2 abrasive pads for the first time on Doug Fir and Sapele door jambs and casing. 500, 1000, 2000. The first go is good, but the pads seem to quickly loose their tooth. This surprises me. These things are sooo expensive, I really hoped they worked! for more than a minute. The spongy backer is nice, but the loss of tooth is a problem. The dust collection merely seems to hold the dust in the pad, contributing to its lack of tooth. I have not found much online re: how to use these things, other than the Wood Whisperer polishing a very tiny tiny project. I am in the real world, building a home with 77 windows, all cased with hardwood. Any guidance would be appreciated.