If I can' t see that it' s bent with my eyes, then it' s straight according to Brandan. And since Brandan' s shooting Brandan' s gear, and is happy with Brandan' s setup, making Brandan happy is all that matters
Of course aluminum and carbon will always be straighter than wood because they' re synthetic, fabricated materials. By synthetic I mean dead/non-living materials. Therefore they aren' t subject to change and growth. I don' t think arrows within .oo3" of straight are absolutely neccessary, but if my lame eyes can see it isn' t straight, then it could stand to be straighter. I don' t see how one milimeter can throw off an arrow' s spine enough to eliminate it from viable selections, but it seems that' s how aluminums judge. Then again I' m not an expert. Aside from the rambling, if they' re straight to the eye, and fly well, why bother if something else is straighter? To me traditional archery isn' t about perfection; that' s what compounds are for.
Brandan