I put the Super Coverite first, then taped off the edges of that area with masking tape before I glassed the rest on the wing (I did not shrink the covering first). This was the first time I did this, you should try to make sure you cut the Super Coverite or what ever fabric you are using straight along the area where you will be glassing and make extra careful not to sand then the covering when sanding the epoxy and glass. I did it and had to recover one of the wing bays. I think there are better ways of doing this, but as of yet I haven'y been able to find any other way that anyone was willing to share with me. Jeff Q did this on his Corsair, but did not elucidate on what type of covering he used, except to say he CA'd it before Glassing.