My GT 5575's (four-fletch 4" @ 90°, 52# @ 30") are flying great way sooner than I expected (new limbs and new arrows Friday). But I started with aluminum footing at full length (32.5") and shooting a bare shaft with a 145 gr field pt., found they were cockeyed way to the left. Cutting them down 1/2" at a time and stepping down to 125 gr. all weekend, I lost the footing, of course, and now have just about 3/4" out from the riser at full draw. They still bare shafted left, but not as bad and when I fletched them they were lasers. Maxed out in length. 3/4" is a just a little too close for me. So that's telling me to step up in spine to the 7595s and then add weight forward. I think I'd like to shoot a heavier broadhead than a 125 gr. anyhow. So I'm going to order a half doz 7595s today just to see.