im not sure i understand the question. a 4" pin to pap pin up layout is not the same as 4" pin to pap pin down as the VAL angle (in your terminology the "pin buffer") would be bigger causing less response to friction or being smoother.
also just FYI RICO layout doesnt refer to pin down layouts in general. it is a specific pin down layout where the pin is in the center of your grip and the drill angle is 45*