I shoot the XCutters from my ICON. The Icon is 70 lbs at 28 inch draw. I shoot a 26.5 inch arrow with 70 gr nibbs and gold tip' s unibushing with Easton nocks. The entire arrow weighs in the 334 gr range. I checked out this arrow to my set up on Archers Advantage program and it basically laughed. It said this arrow was way too stiff for my bow. It recommended a 29" XCutter with about 125 gr nibb before it got into the green (good spine for my set up).

All I can say is they shoot great for me. A good friend of mine shoots about the same length arrow as I do with a 50 gr nibb and this guy gets good flight out of his arrows.

A lot of people want to go to about a 100 gr nibb for the large diameter carbon shafts, but I think it is trial and error. The only thing I would caution you on in the experimental stage is this... If you epoxy these tips in you may damage the arrows getting them out. You might want to carefully hot melt the tip in and see how it flies. If it is not up to your standards then add some weight and go again. Once you find the right set up then epoxy the points in.