Hi Len,
Most of my problems was with the fiddly bits in the tail boom and how the engine sat in there. Also, if you use the pilot, do not glue him in place since I had to break the glue in order to get the bubble properly fitted which required some putty by the way. Engine halves were mismatched as were the two fuel blisters which required quite a bit of sanding. Bubble assembly had good fit onto the tail boom assembly which was a plus. Cockpit assembly fit was OK but mating of the instrument stack parts was awful! Be careful of the VHF antennae hoop - somewhere along the way, I broke the hoop off from the instrument stack and lost it.
One thing I will strongly suggest is a lot of dry fitting first. I made the mistake of rushing to glue too quickly with some parts that I later had to separate again.
Some careful assembly, sanding, puttying and it builds up pretty good. Post some pics when you get it done! Good luck.
RODC