To me the flight looks ok, and one of the groups at forty I basically had 2 of 3 almost touching and the 3rd only about 1.5"-2" away. I have Montecs and Rage three blades and I was checking that they were both grouping the same with my new arrows. I plan on using the Rages though.
What is Broadhead tuning. Both the rages and the Montecs group the same and have the same POI as my field points. I may just try adjusting the rest in and out to see if it makes things any better.