I'm leaving my comfort zone and switching from aluminum to carbon arrows next month. I'm currently using 125 grain 4 blade muzzy broadheads. I prefer fixed blade broadheads and would like to stay with what I have. Should I switch to a lighter weight or keep it, as is.

Carbons will handel the broad head of your choice with no problem. There faster, stronger,quieter. You can use them on multiple kills.

What arrows do you have in mind? Also what re the specs on your bow?

u will not have to change i use carbos with muzzy 3 and 4 blade heads

I switched a few years ago and will never look back. Carbon is more durable, penetrates better, and should handle your broadheads just fine. Depending on your set up, which shaft you go with, will determine whether you should switch weights or not. Give us a little more info on your set up.

the other nice thing about carbons is that you dont have to worry about a bent arrow...There either straight or broke..I use goldtips,and have had really good results out of them..You pretty much get what you pay for.If you go to walmart and buy some carbons off the shelf for 35.00 you will probably regret it.

definately start off with some decent quality shafsts and you will have no problems, i also use 100gr 3 blade muzzys
and they hammer!!!, im using Vapor 4000, out of an 71 pound bowtech Justice