Just wanted to say that I'm currently working on the ancient 1/48 Monogram P-61 and it's time for someone to come out with a new kit. Closing the canopy hatch is a nightmare - the fit is horrendous and being a clear part the filling and sanding is near impossible to do well. There's a replacement canopy set that costs $35 (the kit is $18) and I would tell you to buy it if you're going to build it with the hatch closed.