You can remove wood from both limbs, as gizmo indicates. I'd try and get everything as even as you can as soon a you can before moving on even if that means losing some draw weight.
Sometimes new strings stretch or knots pull a bit so the string "gets longer" that's no big deal just tighten it back up and continue. If your piece is gaining set thats a different story and you need to ask why and correct things. such as tiller or MC
Hope that all makes sense, good luck! Pictures do help a lot
Mike