Good luck, I'm sure it's not the answer you wanted to hear. Give it a shot, we both maybe pleasantly suprised.
There are lots of factors that dictate what spine a bow and shooter will need. I just ordered two more of the same bow I'm shooting now, hoping to get exactly what you are wanting, one bow that shoots 3 sets of arrows. All 3 bows the exact same specs. If nothing else I'll need 3 sets of arrows. Only testing them all out will give you your answer.
oops, should read 3 bows, and 1 set of arrows, the other two are backups for the bow I'm shooting now.