Anyone else using Mirka Polarstar on Polyester?

[gerberguitars]

I'm curious if anyone else out there is using Mirka Polarstar sandpapers on Polyester finishes? I've been using it since we decided to move to polyester, and I can't believe how well it cuts, all the way up to 1500 dry. I'll never wet sand again on the lower grits moving up to the Abralon! It only comes with a grip backing, so to get a hard surface for leveling I made a hard backer out of 1/4 inch plyood, and use double stick tape to adhere the paper to the backer. Pulls right off when I'm done with it and the double stick tape lasts a long time. Works great!