Fitting the wing fairing gap to only 1/32 or 1/16" may look nice, but may also cause some problems in flight.  There is a surprising amount of flex in the wing and spar system, especially in turbulence, and having that small a gap may lead to something going crunch.  Better to go with 1/8" and cover with tape.  BTW, I've found that the Scotch 33+ electrical tape works very well as gap tape.  It's cheap, available everywhere, and can be easily replaced when it gets ratty looking.  For me it has lasted longer than the high-priced gap tape.  Apply with only moderate stretching -- if you stretch it too much, it will creep over time.

Jim Cameron
Legacy N132X
Boerne Stage Airfield, 5C1