go to drifters forum.
look at the read this thinkgs at hte top of the page.
read "which is faster drift or grip"
that will explain all
and it will wear out your tires faster but more evenly depending upon how you drift.
Did you see at the top of the page where you started this redundant thread there is a special forum just for drifters? It's right there at the top. You can't miss it. Wait, you already did.