Just checked out the 2011 Hustler line up a local independent (but good!
I think the old literature I had created confusion.
Three Residential models, Sport, FasTrak & FasTrak SD. I definitely do not need the SD.
The 2011 FasTrak has the same ZT3100 transmissions as the SD, 22hp Kawasaki FS, non-folding ROP bar and 4 year residential warranty.
I think I found a suitable machine if I can get comfortable driving this thing!