I've got a 28" draw and shoot a 60" BBO, I'd move the string nocks in 1/2" or 3/4" from each tip and see where that gets ya. You can always go a little more if you need to. Just make a couple of temporary string grooves to make the bow effectively shorter, but don't cut anything off yet. You can always go back to the same nocks if it doesn't work out.