As has been said, any tuning method will require consistent form to give reliable feedback. I paper tuned religiously when I shot wheelie bows, but never tried after I went to trad. Slow-mo vids of archers paradox have me questioning how it could be of much value, but folks who use it claim it's a matter of checking at the right distances to negate the effect. I've also wondered if the paradox vids were arrows that were purposely underspined so as to exaggerate the effect??? Personally, I like bare shaft or bare/fletched grouping methods, but without consistent form they're just exercises in futility. If you have doubts about your set-up folks here can get you "in the ballpark". Shoot awhile and enjoy. A poorly tuned set-up will still shoot consistently with proper form, so when you're stacking them on top of each other it may be a good time to optimize your set-up.