No mods yet, but I do have two pieces of 2" trailing edge stock thanks to ChuckAuger. I'll have bigger ailerons soon. Don't know the weight, only epoxy I used was joining the wing. Screwed up and used the 1.5mm sheeting for the turtle deck and bonnet so it might be lighter but those areas are weak and I must use extra care handling my model. When building, the thinnest sheeting is 1.5mm and is for the wings. The 2mm is for the turtle deck.