Jeremy,
Dont make me send our good buddy ricky over here Anyways.. i got to thinking about your both thru the wing tube last night. personally, i would probably replace the entire tube. Mostly b/c over time (with your mods it would probably last forever) what flexing it does get, it will slowly put stress fissures where the holes were (especially if they were not deburred, which is probably a very high possibility they were not). Just something that kinda lingered in my head all day after reading your post.