You and I must be separated siblings. I have a Frontier RC2048 and am about to buy a RCR1548 for my LX2610. The Frontier was a buddy's who needs it back.I recently got an RCR1548 for the B2601. I mow trails, and the 60 would stick out too much on the sides. If you're just doing a lot of flat fields the bigger one would get the job done quicker.
I'll need to mow big areas where we had a forestry mulcher clear but only once/yr or once ever 2 years. It'll take longer with the 48.
Before, I had an old Fontier RC2048.
I considered the Woods BB48.20 (too expensive) and the Everything Attachments (too long of a wait) but found an ok deal on a used RCR1548