I love this move, it's got Jimi and Beck all over it. I find from personal experience that as guitar players we usually bend strings up a whole step. Now this makes sense because our favorite scale as rockers is the pentatonic scale. The pentatonic scale has no half steps so we stick to the obvious b7 to root bend. But, the pentatonic scale does contain some minor 3rds. the root to the b3rd, and the 5th to the b7th. These are some very cool sounding notes to use, just ask Jimi, Jimmy, Eric, Jeff, Eddie, you get the idea.