RN: Actually it's the Rat Shaker II. My wife bought it for me off ebay over a year ago an paid WAY to much for it, but I was asleep and she knew I wanted it so she got it for me. It's the only Bussekin I've got now, the others were either not what I was looking for or were priced too much for me at the time. Now the S5, I plan on being able to get one of those and enjoying it very much. But I also wish the "choil" wasn't near as big as it appears it will be. Oh well, If they build it, it will be bought.