is a gripper a 2 way diff? and can be adjusted for lock on accel and decel...... e.g. 70% acc 30% decell ....etc

And also is it a diff out job to adjust? and how often do they need re-adjusting??

I like the sound of it sliding the ass out all over the shop if i want to!!

But would an ATB be the same or does it give even greater traction and thus harder to slide?