Wow -- I have the DMM-60 deck (Italian made, possibly del-marino since I think it's over $2500 new and Del Marino's aren't cheap as far as I know). Hmmm -- maybe that is what the DM means in DMM -- Del Marino Mower 60 Inch.
Anyway -- the mount on the 3 point is MUCH less "invasive" IMHO than the bobcat. Height adjustment is done with pins at the 3 wheels -- the two caster wheels on each side and the dual wheel set at center rear of the deck.
Rick -- if I remember I can scan the blowup diagrams of my mounting mechanism. You certainly can't do a hoe and deck at the same time, but I'm quite sure you can do a hoe with the deck removed w/o removing the extra hardware on the 3 point arms etc.
My deck goes on and off w/ 6 simple pins -- I can do it 5 minutes. If I had a hoe, I wouldn't mind removing the deck to put hoe on etc. I wouldn't want to dig w/ the deck on anyway.
My only complaint about my MMM is having to horse 350 lbs of deck around w/ only caster wheels on the front. The rear wheels have to drag a bit to get the deck out.
Also -- I use the top 2 cutting heights. Top one for normal cut during hot new england summer and then I go down one for the fall and winter final cut so my grass is short for the winter.
Here's a link to my lawn at the old house. Looks like a golf course.
Post with pictures of DMM-60 cut lawn
On the bogg thing -- yes if you have the deck going and going up a decent grade the hill + mower will make RPMs drop off. I just adjust the HST pedal accordingly as I cut. Going flat in low range I can cut w/ pedal all the way down and no amount of heavy grass stops the deck.
A lot of guys aren't fans of the MMM and prefer RFM, but I am very happy with my deck and would not want to trade it for zero turn, walk behind, or lawn tractor!