So, this season has been full of videos with teams using these things. Ive had mine now for about a month and have had only one opportunity to use it on the snow. (Which happened to be on snow scraped from a parking lot which had less than .5", took 3 trips, two cars, 6 recycling bins and 2 hours. The snow was laid over carpet strips in a parking lot and led onto my friends rail. Small victory, but fun.
Ive used it pretty extensively for longboarding though and would like to report on it.
The Bungee has ALOT of torque, it snaps you up to speed in a hurry. The convenience of it is that it eliminates the need of the dreaded "bro tow" and provides ample speed on flat ground.
We used it for longboarding and practiced our slides. it worked very well. Id estimate I was going up to 20mph with a moderate stretch of the rope. More than enough to jib, and jump.
I will have more detailed info on the way this works in a week and a half after I use it in CO!