Mounted the Pro-V sulky, Model RS-S. Scag calls it the "ride-on attachment" lol. What I like: 1.) RS-S is easy to install. Have to drill two holes in cross member for spring loaded hook to hold it in "trailer" mode. 2.) Full size single caster wheel that swivels 360 degrees 3.) Fully greasable caster wheel and swivel 4.) Bronze bushings at the mower mount What I dislike: 1.) Non-adjustable sulky height. Sulky foot placement is only 2.5" off the turf, but because the Pro-V has up/down and left/right handlebars and I'm over six foot tall, it makes it uncomfortable as my arms are stretched to the limits and I'm hunched over so I can get max speed in a transport/riding sulky mode. 2.) Seems to be a dead spot while reversing. In other words, tears the turf a little during a fast reverse. This may be what all sulkies do, I don't know, as this is the first one I've ever used. 3.) Makes the front end of the mower on hills a lot lighter. Can actually pull the front end up. I've talked with Scag already about any adjustments I can make. None at this time. However, if you are 5' 6" or less, the handlebar positions, no matter the speed selected, are comfortable (I had my business partner, my wife, test it out)!