I have all the parts sitting around, most of 'em universal though the lever is from an old CJ. I can rig a way to mount it to the carb and run the cable through the fire wall and mount the lever on the shifter.

Mainly what I want to know is if anyone has any real world experience on the trail with one either in a Zu or other rig. Does it really help with the three pedal dance on hills if you stall? Any major cons I should be aware of?
I did a search but didn't find a lot of opinions and that is what I am looking for, a general consensus of them. Chime in if you had any run ins with them, good or bad.

Thanks in advance
Craig