i have the quaiffe in my daily and in the cup car and i must say its an excellent bit of kit, ive yet to test it on slicks but i must say even in torentual rain at mallory on r888`s it was amazing, i also have a gripper , of which i may install into the other cup {with the help of code red...
}, i dont have any experience of this but im told even by tom at gripper that they can be as matt5 says high maintenance as uppose to the quaiffe...
..
, a great asset though if its for a track/race used car no doubt!