I have been watching a lot of my guitar idol Jeff Beck. I SO admire what he can do with the tremolo bar. I have been watching how he plays very carefully. He doesn't use a pick, and the way he uses the tremolo so subtly would be nearly impossible if he did. He often grasps the trem arm between his thumb and fingers for very precise control of it. For faster things where most of us would use alternate picking, he uses his thumb and index finger, and keeps the trem arm grasped with his other three fingers and actually uses the trem right in the middle of very fast runs and to augment string bends. Like I said, I think doing much of what he does would be nearly impossible using a pick. So, at the ripe old age of 70 I'm going to go to work to "learn to walk all over again".