I have a Gecko that I have been finishing myself. This is my 1st build and I am very pleased with the results. I have about 20 coats of rub-on poly on the body and I like the results-all grain is filled, glassy and smooth. I just want to get out the final tiny specs out. I could actually live with it as no one would notice, except us very critical guitarists who examine every inch with a microscope. I tried using 0000 steel wool but that dulled it and left tiny lines, so a I added another coat of poly to smooth it out. Is the last step polishing or buffing (I don't have access to a buffer). Hopefully you can recommend some easily accessible products so I can start jamming!