Can anyone recommend a good high-shrink covering material? I have a neat staggerwing beech I have finished and need to cover. It has a wingspan of 18 inches and will be an indoor flyer. I have tried both coverite and ultracote and I can't seem to get the wrinkles out after tacking around the edges. I'm now thinking about trying some light weight iron-on tissue using balsaloc. I'm sure open to any and all suggestions and/or recommendations.