John you lit the light bulb for me with your explanation.  DUH, now I get it.  I can't believe I missed how performances really worked first time around with the PA series. WOW, I'm just shaking my head, because it's pretty simple the way you just explained it and yes I can see where it SAVES A LOT OF WORK! 
Thank you for the thought on adding pads! 
Best regards,
Steve