Should the "amount" of extensor action be proportional to the "amount" of pivot? (but always with EA slightly less than pivot power...I am not trying to quantify force here...just compare).
By that I mean that an inadequate , underpowered pivot can be overcome by alot of extensor action ... and then the right arm moves the left or...some throwaway begins...and that is less than ideal...
But if you want to have a really strong pivot..you need alot of EA to give sufficient structure to Power Package for the hand guidance system to work and control the pivot?
THese are just thoughts...not tested...thanks for any comments.