GG....I am the worlds laziest person when it comes to bow tuning. When I get a new bow I just grab some arrows that I already have on hand, find the ones that shoot best, play with the brace height and point weight a little and just leave it at that. I never get rid of arrows even if the bows go away so I have arrows in 1916,1918,2014,2016,2018,2020,2115,2117,2215,2216and 2219 so I usually grab the right arrow the first time.(I love aluminum arrows)The only time I seriuosly tune is if I decide to hunt with that bow and will then fine tune with the broadheads......when you tune your bow, take your time, shoot a few groups after each change before making the next to get a truer idea of your results, as you get it fine tuned its usually easier to see a difference in groups at 20 to 30 yds. A nice tight mixed group at 15 yds may turn into 2 seperate pieplate groups at 30 so it would still be off a bit...........hope this helps.....YMMV