Well ill testing them on smooth rims as i refuse to grind my new rims. So ill let you know how i get on woth them. And i dont care that this has gone off topic because i had my answer anyway.
I think you have this wrong, im thinking completely the oposite to you. You get as much bite, if not more with smooth rims, just theu have to be dry And not all pads slip, i know mine dont