I feel it depends on your bow wieght as well as I shoot 75-80 lbs
and shoot arrows that look like tree trunks with a heavey broadhead.
And for me it is all about control. If the arrow is to lite is spins from
the back and then not as acurate. So going heavey I loose a little
distance but the hitting is very hard. One of the deer I had shot
was a hard shot to the briskett and went clean through the heart
and out the side ribbs. Broke four bones on the way through. So I
do not mind the heavey weights at all.