just want to share on something i stumble in. i don't know if this is helpful. but i hope it does. http://rds.yahoo.com/_ylt=A0geu6pyXfVHkZkAJtdXNyoA;_ylu=X3oDMTEya2QzN2hwBHNlYwNzcgRwb3MDNARjb2xvA2FjMgR2dGlkA0Y2NjVfNzY-/SIG=12oerui31/EXP=1207348978/**http%3a//www.i-car.com/pdf/program_support/advantage/1998/marapr98.pdf
Buffing Pad Design - http://www.i-car.com/pdf/program_support/advantage/1998/marapr98.pdf Good info, thanks