nah he has a 6rr now, seen him on stuntlife, the way people dent the tank from what I've read is they remove the plastic cover, then dent the tank in underneath, place the cover back on and use a heat gun to mold it back, a while ago I saw someone who did it real good but I can find the pic anymore..
i saw a guy who had his plastic off, but had a complete bowl shape to his tank. it was all leval. . . but a perfect bowl. he just did it himself with a hammer, came out nice. dented in rather far, few inches.