Were you using those for trolling salmon?
I've often thought the lever drag on those would be good for an instant adjustment to lighter drag so the fish can run when the reel is pulled out of the holder and it is still set on tighter drag to stop linecreep.
I like knucklebusters but I don't like where I have to mess with drag adjustment when there's a fish on.
The setting on my knucklebusters when deep is a lot tighter than I'd like it to be for when a fish hits. So when it does, I have to mess around unscrewing the drag a bit.......which is a pain....