Like the others have said, the wire tunnel is not wide enough. I removed the outer part of the extension connector and used dental floss to keep them together. Used a piece of music wire to pull the extensions through. Also as previously mentioned, add more bracing underneath the sheeting in the cockpit area so that you don't crush it when you pick it up, or grab it from a hover. Do not cut the LE in the fuse to a sharp point as shown on the plans. I did and have a slight gap. They tell you to add material for the landing gear area and that it is not included. Since I have had others that crushed the wood in that area I used maple stock and it seems to be holding up very well. Landing gear are the "Krazy Legs" type. These were the only areas that I thought could use some attention.