This is a clearer shot of the port aft lift pin receptacle to fuse fit.
The wing is swept aft here eliminating any clearance, but when things are where they should be, there is enough clearance for 4 BID and the final Redux / flox coating.
Again the rear lift pin receptacle is jammed neutral here and the lift pin is screwed out 1 full turn to allow any fine tuning adjustments later on.
I measured, and 1 full turn in on the lift pin equates to about 1/8" movement of the string at the root of wing by spar, (size E Dacron strung between wingtips).
Y10-10-18