I'm assuming all your "numbers" are both positive or both negitive of Zero,if so.... You'll need to buy a few sets, depending on what the manufacturer offers......for what dems you supplied .002 thru .010 offset, if your looking to get within .001-.0015 runout,.....it's a "trying" procedure, but well worth the benefits,.....when you tighten down the bell, try to replicate your torque pattern, as you find out, varying your tightning pattern, varies the runout!....make sure all the bolts are present in the bell, as you offset for dial in measurements