Thanks guys
Design is great, just fat fingers and implementation affected the final product
As you suggest Jaxx I thought about adding a tape line to hide the middle join but decided to stick as close to real spit bubble canopy as possible. It's only noticable close up 0
That spitfire is actually an 80% size one i made with 3mm foam. I have a full size one to make a canopy for as well so I'll try out trimming the overlap on that one and see how I go