RE: Broadhead weight
 

Sorry to leave you hanging.

http://home.att.net/~sajackson/foc.html

This should help you figure out your FOC I like to be around 20 %

RE: Broadhead weight
 

Yakfisher,
Log onto the Goldtip website. They have their arrow selection charts there as well as a "Build your own arrow" function. You can plug in your specs and it'll give you the Forward Of Center percentage. Keep in mind that it's not going to be precise, but you'll get a good idea of what your FOC % will be.
Also, 26 1/2" GT 5575'sshot with a 64# bow will be spined good for a 100 grain broadhead.

RE: Broadhead weight
 

My arrows turned out to be 3555's. By Gold Tip's chart, with a 75 grain head, I am shooting 9-10 pounds over what they reccommend. I have been shooting these arrows for about five years. I originally bought them for another bow that had a soft cam. I also shot less poundage with that bow because it only had 65% letoff. I never checked them for the new poundage.

My arrows are long for the rest I have. I am going to cut them down to 26 1/8". I am going to drop my poundage back to 60#s and try a 100 grain head and see how they fly. If I don't like the arrow flight, I am going to buy different arrows for the new 100 grain heads. With the new arrow setup, I will have a calculated FOC of 12.6 versus 9.6 with the old setup.Thanks again for everyones help.

RE: Broadhead weight
 

I ended up getting 100 grain Wasp Boss broadheads. I will be shooting them this afternoon. I will let y'all know how they shoot. We shortened my arrow length by 1 1/2". I think they will do fine.

RE: Broadhead weight
 

Absolutely....let us know. I'd be interested in hearing how things worked out for you.

RE: Broadhead weight
 

I re-sighted the bow in with the new broadheads. They are flying great. Our season opens tommorrow. I am ready!!! The bow is shooting great!! I feel a lot more comfortable shooting a heavier broadhead. More later. Hopefully.