Over the past few months i have been on HNI I have read a few things about arrow weight for traditional bowhunting. Now I think that most people aim for 400 grains in totalfor a whitetail arrow. But, then when it comes to bigger dangerous game like bears they want like 750 grains. Well my qeustion is, how do you get a 750 grain arrow to match to your bow if all you have been shooting is whitetail arrows? Do you just have to get a 750 grain arrow with the right spine then get used to shooting with it before your hunt?