Updated Equation of Availability of A-Stretch
Thanks RB ;) !
Here is the updated equation:
A = f ( x1, x2, x3, x4, x5 )
where output A = Availability of A-Stretch is the function of independent variables x1=BPFS of penis, x2=width of forearm/wrist, x3=length of arm, x4=body flexibility and x5=shoulder width.