I actually checked out the Ferris Evolution a while back. And I found out that it is only available in 48 inch. I think thats a bit big for my lawns.You can get a 44" commercial ztr mower for small lawns as well. They are versatile enough to handle most jobs. You would be amazed at th inclines I have seen them used on. Stand ons are probably better at tight places and inclines, but ztr mowers can handle small jobs. The reason most companies around here use ztr mowers is because the average lawns around here are much larger than what you are mowing. The goal is to do a good job in the least amount of time possible and move on to the next lawn. It doesn't appear that you are going to be taking on many larger properties, so a ztr may not be right for you. Have you looked into the ferris evolution I mentioned? I do know that I wouldn't want to stand the entire time I am mowing my 4.2 acre lawn.
Most of the companies I see near me are all using 52" and 60" ZTRs. One time I happened to see them mowing a property like mine it was about 5k-6k sq ft and they were using a 52 or bigger and the front yard could not have been more then 2k Sq ft. I wonder if they where able to get in the back yard. Haha
Like I mentioned before I have three properities that are 15,000+ but it is commercial and it is all split up into smaller sections. For example on a 15k property one section isn't even 1k and there are a few other sections that are smaller than that. Then there are sections that are like 6k sq ft. so it's kind of weird.
We have been doing mostly small residential because with two Toro SR4s you can't handle much more. The grandstand and other Toros that I was considering are too expensive for me right now. Toro is always on my mind anyway. I have looked into Scag i was quoted about $5,500 for their 36" stand on. That was the lower Hp engine. I've also thought about snapper pro they have a ztr that is only 36" but like I said I have absolutely know idea why but I just don't think I want a zero turn.
I've used a ztr before no idea on deck size probably 36. I wasn't in lawn care at the time but I really loved using it. I just don't know why for my company I hesitate to buy a ztr.