The new high capacity deck is almost an exact clone of the 7-Iron, a definite step up from the older Edge. I have a 54 inch edge deck on my X595, and it cuts pretty well, but the 60 inch 7-iron on my Z830A is far better. Cuts better in turns, where the edge will sometimes leave streaks, stripes better, you can mow faster, better discharge. Get the high capacity deck.