Clint,
The position of the MB will affect the movement shape, while the location of the pin relative to your PAP and ball surface will affect how early it will roll. By putting the MB near your VAL, you will get a smoother reaction than you will get by putting it near your thumb which will give you a stronger movement at the breakpoint like you are seeing with your current Cell.
I would suggest going off the Roto Grip Drill Guide with possibly the 4 X 4 drill and either the 4C or the 4B depending on how strong you want the ball to be. The 4C will definitely be earlier than what you have and would really need much oil.
Hope this helps!
--------------------
When in the Course of human events it becomes necessary for one people to dissolve the political bands which have connected them with another and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and of Nature's God entitle them, a decent respect to the opinions of mankind requires that they should declare the causes which impel them to the separation.
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. — That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, —