Drifting is about the "loss of grip", just an FYI. Why would you want to add more? The only time I could see someone doing this (and still not with RS tyres) is if your a new wheel drifter that's trying to get the hang of things. I found it a little easier to learn on CS just so that I had a bit more traction and didn't slide out everywhere. Now is CH all the way. I love little to no grip.