Another Versa-Grip user here... I just got a new pair for Christmas, can't wait to grab a bar! Like BTB said, the grip is death-like. But it's still so easy to let go if needed.
I would recco the Pro series as well, especially for heavy pulls. They make the lift itself easier to focus on, versus getting a grip on tight enough.
Mt Snow, VT - May 5, 2012 - Completed!
...i remain, he who remains to be...