A few years back there was some footage of Casey Stoner. He was out front, way ahead, in a fast corner, lost the front end...then it came back! The announcer was all over it, and half a lap later, they cut back to the camera that was his hand, facing back looking at him.
When he lost the front, you could see him let go of the bars! That of course is what allowed the bike to recover. He had just enough pressure to keep the throttle on, but he hands visibly opened as the front tucked and recovered.