i un-tuned my bow today

got a new string for my recurve, and i went from perfect bare shaft flight at 27yds, shooting a lot of arrows, excited about a new arrow build to dropping my brace height 3/4" and cutting 2" off of the arrow, still showing weak until dropping to too light of weight..... so, of course i now have my old string back on, ordered a different string, and laughing at my butchered arrow in the name of going against the grain, and not just accepting the facts.
i don't know how there could be so much difference just changing strings, but all i can figure is the center serving on the new string is power grip, my old string is served with halo, and i think i come off the string a lot different with the power grip, it feels a lot grabbier, that halo is good stuff for trad bows getting a clean release.
shooting my recurve every day, even if it's a few 12 yd bare shaft shots in my headlights after work, and shooting my compound almost every day. building a much lighter arrow for my recurve, which is proving fruitful in my shooting. my mind likes the trajectory a lot more, it was like an instant significant improvement in shooting.... was shooting a 660gr arrow, now i'll be around 520-530gr arrow.... i'm liking it.
i don't go many days throughout the year that i don't do something in preparation for the upcoming year's hunts.