After trying the Cyclone Rake Commander (32 bushel collector), we very quickly realized it was going to be too large for our particular property. Otherwise, it is a great machine. We have to dodge lots of obstacles and manage steep, moist hills and walls. This situation is exacerbated by the fact that the lawn duties have been relegated to my lovely better half who enjoys the mowing duties but is still a bit new at being aware of everything going on in front of and behind the machine.
I remembered a less popular attachment for the Deere machines and ended up getting one, the MC519. It seems like the perfect compromise for us. It is amazing to me how long they have been in existence but yet how well they adapt to the number of machines Deere has made over the years, even our 4WS X324, which has a lot of mechanical components at the rear of the machine.
The collector is only 19 bushels, but making a few more stops to empty it is not nearly as concerning to me as having an entire leaf cart (followed by tractor and operator) tumble over the edge of a retaining wall due to a momentary lapse of attention. Where I had to stay away from any edges/obstacles by at least one deck width with the CR, this MC519 seems to let me get within about a foot of most anything if careful. I especially like having the blower attached to the deck instead of a dedicated blower engine, which makes for a deafening experience and very difficult to tell if/when the mower deck PTO has cut out (such as when you touch the reverse pedal). Of course, with the dedicated blower, you will surely get better leaf compaction and possibly mulching action, but that's another sacrifice I'm willing to make.
Yet another compromise with the MC519 too is that it doesn't fold up flat like the CR, but at least it's not one of those monster dog house trailers which would simply take up too much room for us. When the MC519 is not in use, I'm sure we can find a space for it, and even store the powerflow blower and chute right inside.
As usual, Deere has the answers...