If you go with the powerflow, just note that the capacity of the 2-bag option is small relative to the size of the machine/deck. I had one and would have gone with the 3-bag setup if I were to do it over again. Bought my old X485 used so it came with the 2-bag system but I remember looking into converting it to 3-bag, but it was too expensive after the fact.
Best and only pic I have of the bagger on it. Sold the machine a few years ago.
I have the PowerFlow on my X534. It is the 2 bag (7 bushel?) unit. I have had no trouble with heavy or wet grass but I do not cut grass that is soaking wet. I prefer to let it dry and cut later in the day or the next day if need be.
Its got plenty of power to move the grass into the bagger, but I am not happy with the way the bags mount in the frame. Too much grass gets caught in the space between the hoop at the top of the bag and the frame. My old JD 13/38 had a much better system for hanging the bags and I wish they had used it on this model.
The latch on the lid does not fasten as securely as the one on my old JD 13/38 GT did, that one used a rubber strap, the PowerFlow latch is not as secure. The guard for the belt drive on the PowerFlow could have been better fit, or maybe I should blame my dealer for doing a bad job if fitting/trimming it to fit when they did the initial install and setup during purchase. I found the belt rubbing on the plastic guard and did a little trimming before it wore the belt down.
Taking the PowerFlow unit off and on the tractor I find to be straightforward and easy. No tools needed and no small loose parts to keep track of, just the chute, the power head, and the Z-shaped metal arm that is used to hang the powerhead on the deck. You do have to watch that you get the belt orientated correctly as it can get flopped around under the guard and you might not notice it. You can install it with the belt reversed and you won't know until you see your not picking up anything since the blower is running backward.
As was previously said the 2 bagger does not hold much and I find myself stopping more often than I would like to and having to empty the bags. If compressed somewhat the two bags will fit in one 32 gal trash. For my lawn I usually end up with 5 or 6 32 gallon cans full. I have no place to dump the clippings on my lot so I have to haul them away and its easier to handle in the cans than dumping the clippings in my truck bad which I have tried in the past and find to be more work plus the mess it makes in the truck bed.
