ORIGINAL: Rob/PA Bowyer
By what your describing it's NOT a cracked limb rather a cosmetic sliver off the edge? You shouldn't have an issue getting new limbs and if it's just a cosmetic sliver (WH gives great advice, have a Pro Shop check it) it's not a shooting issue.
For years when I shot Hoyts, especially carbonite limbs, they'd peel slivers off constantly with no worse the wear for shooting. Have a dealer check it to be sure.
When Hoyt came out with the laminated xt series limbs,they would sliver on the edges quite abit.Completely harmless.Many did get them replaced at the time.I had 1 do it and I just sanded it and no one new any different.They don't do it much now though.
If you don't know the difference,make sure it is checked out for sure.That can definately cause problems with your pin gap.