I believe my problem was self induced! I too have used polyspan on many of my planes with absolutely no problems with Brodak dope for color coat and Sig lite for clear coat. But in this case, I used Sig Supercoat to attach, let dry, then a little heat to shrink out the wrinkles and tighten up. Then three coats of Sig Supercoat. Let dry. Really tightened up and looked great. Finally (think this was my problem), mixed color dye with Sig Supercoat and painted it on (didn't have access to my spray gun). It took three coats to cover and it had to be in heavier amounts than a spray gun. I believe that I just over applied taunting dope to an already pretty tight covering job. It looks pretty awful! And would be too heavy if I over cover in silk span and then re-color. I am going to take it all off and start again. Off to hardware store for acetone and paper towels. Yuk!
Jim
ps: my wife says I spend too much time building and not enough time flying. Think she has a point here!!