You need to balance taper rate with bow design. I don't build recurves so can't say on them, but I use from .001 PI to .003 PI in my longbows. Some guys building narrow bows use up to .006 PI because you have less to taper on sides of limbs.
Try one with your design and study it at full draw to see where to go .
If the lams have been around awhile, I would scuff them with a sanding block and blow dust off right before use.
Good luck and have fun!!