Originally Posted by
Bbearfax
You are absolutely correct. That is one of the first thing I looked at. The specifications and calculations showed I would be fine up to about a 135 grain head. But at that point the FOC would be way out of wack.
The calculations are just q guideline. Real world can be completely different. Nearly every arow chart says at my draw elweightand arrow length a .340 spine is what is needed yet my bow (and most other slaved camed bows) wount shoot that spine. Most have to shoot .300 for the arrows to group properly. Their are a few out there that havebeen able to get the .340 to shot good but they are the minority.
You don't have a bow tune problem and not necessarily a broadhead issue. It's a spine issue. If you want to shoot a 100 grain head you'll need a stiffr arrow. No matter mech or fixed.
All these comments about maybe you can shoot, tune or others are just uncalled for. Defending your choice in broadheads is one thing. Prsonally attacking someone for their opinion is juvenile.......
Good luck the rest of the season