Before you pull the wires through tie a better piece of string on and pull it through first. If by chance you lose the end of the string in the middle of the wing use a vacuum sweeper hose to suck it back out. Be sure and cut the servo opening fabric first.
If it is not too late iron the covering all over first before assembling anything. Put the decals on early in the assembly stage. It will be much easier to put the lightning bolt on the side.
If you ordered the .46 ultimate combo you might have forgot to order 4-40 x 1 /1/2" long muffler bolts for the Pitts muffler.
I had to grind a relief in the motor mount for the muffler to bolt up correctly. Have you had the same problem?
Fun plane to assemble. Wish I had another to do. This one built to quickly.