Still trying to understand it. I apologise if this is a repeat, it probably is but it's new to me. Measured my bow yesterday after some insightful comments on another thread by a couple of very knowledgeable people. My bottom limb is 35" from string nock groove to Berger button. My top limb is 31". So if I have a two inch crawl with a split- finger release my bottom limb will be held at 33", and my top limb at 33". So my bow, if set set zero tiller will finally be balanced exactly. So that crawl could be my optimum one for tuning the bow? Except that I shoot 3under so I have to go slightly positive? But then of course the blooming arrow is two inches higher than my perfect point of balance, as is the Berger button. So to nullify this and get back to balance, do I remove the positive tiller, to get it back to zero, or do I go negative? It seems to me that there must be a mathematical/ geometrical optimum for this theoretical point of balance? Which would be good to know as a fixed point from which I could expect things to alter as I moved up or down the string? Or not?