The Kubota mower deck floats better for me. I was having scalping issues with the New Holland deck as I would crest the top of a grade to a flat area
Bizdoc I think you made a good choice if you mow alot with that 72" MMM. Before upgrading to my DX45 I had a DX29 along with the rear discharge 72" MMM. It was my only complaint about the tractor. Scalping issues were not too bad but the deck profile was not deep enough. Even though it was a rear discharge, its was really a mulcher and did not really discharge. Unless the grass was dry and 4" or less it would often clump up, bog down, and had to almost stop as the deck spewed big clumps of grass as it cleared. It was extremely frustrating since I had the same problem with the 60" MMM on my previous DX24. I think it's just a design flaw in the mower deck that even my dealer mentioned was a problem. Now I've got a DX45 for my tractor chores and a grasshopper mower, which by the way cut my mowing from 4 hours to 2-1/2. (and if you didn't notice, I'm on my third tractor in 3 years and am a perfect example for the "buy bigger crowd" $$