I was dissapointed in the fit of the fuel tank to leading edge fit. I found that the pillowed some between screws at W423 attachment. The pillowing raised the skin surface about half the thickness of the tank skin in some areas.
The solution for me was to slightly tweak (about half the skin thickness) the skin down to seat the skin edge against W423. I also removed in s few areas a very small amount ot proseal which had rolled out of the T410 to skin joint during tank construction.
I reinstalled the tank and found the fit to be very acceptable.
