I shoot a similar bow to your Mathews and like my arrows around 425 grains.

I have XX75s 2219s that weigh over well over 500 grains and dont like the way they fly out of my bow. They are quiet though. My Axis 340s weigh about 425 and are quiet with good penetration. My Maxima 350s weigh about 375 and fly well and shoot flat but I notice they are a bit louder at the shot.

I use the Axis arrows most of the time and have tuned the bow and rest for those arrows. When I shoot the 2219s I use my 50 yard pin on 40 yard shots. When I shoot the Maximas at 40 yards I split the pins between the 30 and 50 yard pins.

No harm in getting a half dozen lighter carbons and giving them a try. Just make sure they are spined right.