Good stuff.

I made a "pull tab" cut into one of the ply plug formers with the idea that once the layup has cured, I could simply pull the plug out of the cowl bottom. Is some "wiggling" usually required with the wax and PVA or will the cowl simply slip off the plug?

I also want a light but firm part. I plan to put a couple of lite ply rings at either end, the front to provide a little thickness and a contour to open the front to (I realize this one is usually not needed) and the rear to keep the shape and provide a flush mount point to the fuse (possibly with magnets but likely screws). I was thinking two layers of 2oz cloth followed by a top layer of 3/4 oz to close the weave. How does that sound?

David