Hi, I have found that the broadheads in the 100 to 125gr range were always easier for me to tune. Im talking about alum and wood shafts. Im shooting Gt3555s now with 125gr field pts,flying like darts. I use lots of helical, and wouldnt be afraid to go with 100 to 125gr broadheads ,myself. Bow is a 41 lb Palmer with carbon in the limbs. Groups are extremely tight. Arrows very fast! Good luck. Tox