When I tried the first time to attch the wings the upper part of the spar touched the F-1204 bulkhead caps before the wings were in the correct position. I took about 1/8" off the sparcaps with the dremel. The wings and pins aligned perfect and it really took 5 minutes now (and no fight this time with my wife) to attach/detach the wings. No play around the stub spars. The only problem was my son not willing to get out the fuselage ;-) Yihaah! Feels good the wings fit perfect now!
