Any tuning is not a waste of time.
Paper tuning, walk back tuning, and bare shaft tuning all have a purpose... you can also add broadhead and tiller tuning to that list.
Depending on the skill of the archer, tuning can be quite infuriating, and in some instances, redundant. But you are maximizing your bow and arrows potential and efficiency, albeit maybe from a 95% to a 99%-100%.
I know many shooters who simply broadhead tune, call it done, fill a tag or two and are more than satisified.
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