I used a new
B7610/RCK60 combo for mowing about 4 acres of residential lawn this year. If all I needed was a mower, I would NOT buy this or any other CUT to do the job. I would be much happier with a dedicated commercial-quality zero turn mowing machine with a deck of equal size. It would be easier and faster to operate, and leave a much more professionally maincured landscape IMHO.
One of my pet peeves with the ground-riding deck; it's noisier than a suspended deck over not-so-smooth grounds, and the two thin center rear wheels leave ugly stripes in an otherwise good-looking cut that generally don't disappear. That said, cut quality has actually exceeded my expectation. It cuts remarkably well (8 out of 10, no prob) and goes thru much thicker grass than I ever expected without a wimper. Unfortunately, as also mentioned, it is a bear to wrestle on and off so don't think you will be swapping it off for an afternoon like you would the FEL or 3-pt implements.
I went with R4s on account of the FEL and because I hated when the turfs on my old tractor loaded up with mud (something I got plenty of), but I scuffed dirt rings around many of the trees etc. while mowing this year. Don't know just how much should be attributed to the R4s or just turning too tight, too fast. Seems my JD 345 did the same thing, just not as fast or as bad. Also, I did have some lawn damage from the R4s in spring... enough to bother getting the little JD out for those wet problem areas. In hindsight, since residential mowing will likely constitute the majority of working hours, I wonder if the turf or bar tires might have been a better choice for me.
Bottom line is it's just so darn hard for a multi-function CUT to do all things well, let alone everything really well. I don't think you can have your cake and eat it too in that regard. But since I bot a CUT for it's all around usefulness, whatever little nits I might have in one dept. is a small price to pay for what I gain in others. Plus, the
B7610 is a solid value in it's class and a real fuel sipper! After about 100 hrs now, nothing is so bad with this setup that you could pry the key from my pocket!