Bill,
Actually one of Randy's pals put him onto Super Fil and I asked Randy if he was using it and he said yes but had went back to West Systems?? and then added that he might go back to it since it sanded so nice. Scott Riese introduced me to it and for the life of me I do not understand why more builders don't use it. I have read horror stories about SIG aero-poxie and aero-poxie lite, shoot not me. You get a super product that really works every time and it's very reasonable in price. It comes in two parts that you mix in a ratio of 2-1. Want info? go to their web site: Parent Company is Poly Fiber so do the google thing on that. I ordered mine from Wicks Aircraft Supply but there are others that carry it. I would be willing to bet my last swing of da smoter this stuff will have you grinning from ear to ear. mixes up nice blends well and by using your finger and some rubbing alcohol you will turn out filets like never before and they will require a whole lot less sanding.
Marv [ lance Corporal of the Smoter's inner guard] Knowlden