Jim, was this an experiment? Dope has flexibility over open bays which oil based products don't offer. Was this a oil based urethane you used or a water based? Stix-it is a very heavy product. I wouldn't even suggest using it after my experience with it on a .40 size stunter. Yes, it works, but it's heavy and heavy enough to notice a weight gain by just picking up the model after applying. The other problem with Stix-it is that the sun tends to bubble it and loosen it in the heat. In addition, when ironing the material liquifies to an extent and it wicks up through the covering which leaves that area very shiny. I personally wouldn't recommend the product due to it's many negatives. I found that when used under Monokote, it doesn't allow the adhesive of the Monokote to grab initially and while your ironing it, the solvents attack the color on the covering which really makes a mess. Seeing that you have silkspan on it, this is a non issue, but why not dope from the start? Silkspan and 1/2A really don't get along too well as they don't usually have the same flight characteristics as the large stuff allowing for cartwheel landing. One must be very careful when using it and while multiple coats of clear allow it to be supple, 1/2A planes typically don't handle the weight of several coats. I found that Coverite synthetic stuff not only offers colors but durability as well. Ken