I hope I am not    here.
I have a 71 Bear Grizzly 58" 50#@28. Also I have a 62" 54#@28 Route66 Firefly. For the arrows I am shooting. MFX 500 27.75 BOP 50gr insert
Carbon collar,125 snuffer 491gr total. They shoot good out of both bows.( the fly shoots this arrow the best) I read all the post I can. Most people I see are in the mid 500s low 600gr. Am I to light? would it hurt if I say went to a 150+ Broadhead? Leave it alone? Never had a problem taking game with this set up. What do the members think? Thank you for your time
Robert

The best thing for you is try a little experimenting with tip weight and see if the arrow out of your Grizzly flies better.

A little experimenting with tip weight does no harm and may surprise you.

I don't think your too light.With the firefly you have 9gpp and almost 10 on the Grizz.Your arrow may be a little stiff off the Grizz and you could add a little weight to the front end and/or leave your arrows a little long to see how they fly.Other than that I think your alright unless you want a heavier arrow.

You said the important part at the end.  If your having no problems taking the game in your area why are you thinking of changing anything?   Settle into one system and learn it like it is the back of your hand.   I would up the head weight for the grizzly.

You said the arrows fly good out of both bows.
Isn't that what what we are all trying to obtain?
You have enough weight, and they are flying good.
I would leave well enough alone.

Thank  you guys for the input. I will try a a few different things on the grizz.