RE: BH Tuneing about to drive me nuts
Some of the software guys can tell you if your spinelooks good.
You can also try a lighter/heavier point to strenghten or weaken dynamic spine. I keep a 125 and 75 grain field point on hand to experiment with differig weights if I suspect spine issues.
Or, you can adjust draw weight to verify your proximity to spine limits. This can revealif you areclose the limit of spine.
Have a friend shoot the bow to see if you are introducing hand torque. I know you might not want to hear that but it is something to consider.
How much are you moving the rest? Just a tiny adjustment can make big differences.