Jeff,
For a while I was a bit underspined with the 5575"s and went up to the 7595"s (10.2 gr/in and .340"spine).
I did not adjust my sites for either, just shot as is, so I didnt have the BH's spun tested, however did have ends of shafts squared, but my point was to do as little as possible to get true flight from my specific set up.
I wont argue that there are so many variables, but with my set up and rig, the ultimate BH seemed to be the Rage Mechanical 100 grain 3 blade. I would actually like to shoot the Muzzy 3's but even after several attempts at tuning my new Apex 5 pin sight to that BH i never got a consistent pattern like I did with the mechanicals.
Its obvious to me that there is just so much more of drag or "flight control" with fixed blades. I know we went over this a trillion times last season, but after having new strings and properly tuned, the Rage shoots exactly like they claim...a FP. It may not be that way with higher speed bows, arrow shafts, etc. but Im sold and wont change my mind with not only the accuracy but the devestation of the 2 inch cuttting diameter when deployed.
I hope we get a chance to cross paths this year, I just picked up another 300 acres of 20% pasture/80% hardwood land in a very remote spot that hasnt been hunted in years, according to owner. The spring rains have made incredible ag fiels this year with the soybeans and corn, so Im stoked. My own clover plot is mid calf high and my other turnip plot is all dug up already.
Stands are up, and cameras out, and unlike last year I have no need to set foot back in there until opening day.
Regards