I have that exact gripper and found it to be very useful if the frames aren't loaded down. Regardless of how full they are through, I still make sure I have the other hand on the bottom of the frame for support. The thing I like best about it, is that I can pull a frame without disturbing or crushing any surrounding bees...something that I have more difficult of a time doing otherwise. I haven't tried them in a 9 frame super yet, but I doubt I'll need it since there's more space to grip without it. Guess it's all a matter of how you like to go about things.