RE: How do I determine the best Broadhead weight
As a rule most heads in the 100 to 125 grn weight will work with most setups. I choose the head weight that ends up shooting best. If weight is a big concern then 100 grn heads would be the a good starting point. If you want a bit more FOC then the 125's would be a good place to start. In the end though I have found little overall differnce.