I don't build glass bows, only wood. But I do have an experience that may help you.
A couple years ago, when I joined Trad Gang as a matter of fact. I dropped a 15 foot ladder stand on my Bear super mag 48" It busted the glass on the edge of the upper limb about 1/32" deep and an 1/8th" from the edge about 4" long.
I joined up here after lurking and posted some pics about what to do. I ended up putting ca glue in it and clamped it to keep it tight. I filled and sanded and filled and sanded........
shot the fire out of it to make sure and finally skinned it to cover up the boogered spot and as far as I know she's still shooting. I sold it to another member and as far as I know he still shoots it.
I say ca glue it sand it to smooth it out some and fill it level with the glass and sand it to smooth it and blend it and finish and forget it. She'll hold. The damage I repaired on the Bear was in the middle from tip to riser and was bending alot and held.
Stiks