If you were shooting a 45# bow, the "EXPERTS" would tell you that you were shooting a correct weight arrow for your setup that would be VERY effective on big game. What amazes me, is that these same "EXPERTS" will tell you that you will bounce off of a deer with the same arrow being propelled from a 58# bow. LOL!!!! I "PERSONALLY" see no reason to not hunt any big game critter on this continent with that setup with the proper broadhead choice. About ANY cut on contact head should perform flawlessly on whitetail, and a narrower 2 blade SCARY SHARP should be good medicine for porkers. BTW my "EXPERT" comments were not directed as actual experts such as the good Doc. Asby, but rather at the computer experts that regurgitate what they hear without any firsthand knowledge.I shot a Moose and a whitetail with just a touch heavier arrow last year and a few pound lighter bow, and heaven forbid a 3BLADE HEAD!!! LOL!!! I sure am glad the critters don't read threads on the internet, otherwise they may not have known they were supposed to die. LOL!!
That said, if you WANT to shoot a heavier arrow and your set up is tuned perfectly now, you could cut 3 inches off of them and add point weight until they tune correctly again. If they are tuned perfectly from your bow now and they are flying perfectly, I would just shoot them and DARE any critter to get in front of a sharp broadhead on the front of one of my 481.7 grain arrows.
Happy birthday and congrats on having a great MOM!!!