I have done exactly that when wanting to shoot a heavier arrow out of my traditional bows.
I prefer heavier arrows in the 600gr range when hunting elk, moose and using three bladed broadheads.
My shot distances are close, I cannot remember the last time I took a shot over 20 yards. So arrow weight is not factor in to arrow trajectory at short distances.
I have a few bows that are tuned for both 400 and 340 spine.
My favorites broadheads right now are Cutthroats for two blade and VAP's for three blade.
