I use a 60" Kodiak RB on my BX1860, and formerly on my previous tractor, a BX2230. I also wish it was slightly wider, or I wish my blade had an offset adjustment. Mine does swing 360 degrees with plenty of clearance, and much more lift on my 1860, then the 2230 had. (higher lift pivot point) I also plan to add rubber flaps on the sides to make the blade a bit wider and to clean a few more inches of width on the drive. I rarely use the blade for dirt work, but for that, its the right size.
If the snow is wet, heavy and deep, the tractor will spin out when "pulling" the snow forward. This is when a wider blade might be too much for the small BXs. Usually if its this heavy and deep, I will go to a steeper angle on the blade or use the loader to clear the worst of it, then come back and clean up with the blade. FEL and RB has worked very well for me.
My former residence had an asphalt drive so I sandwiched a piece of rubber horse mat between the blade and the scraper to keep from gouging the drive. Even though I now have concrete I have left the rubber mat in place. I have found this works well when blading the sidewalks and the edge of the drive. When the blade hits the grass next to the sidewalk or the drive, it does not rip out the dirt and grass like it would if it did not have the rubber edge.
Note: The Kodiak does not come in Kubota Orange, I painted it several years ago to match and my Dealer hooked me up with some decals.