... I have also not always been happy with the cut. When traveling in a straight line it cuts great. When going around a corner you have to go real slow or it leaves uncut streaks. Not sure if this is typical of 3 bladed decks or if I'm doing something wrong. Just thought I'd point out problems I've had even though they are minor and this is a very nice deck.... .
Thanks for your review ( I'm researching JD2720/62D2
)
MMM decks have little ( half an inch or so ) blade overlap . When one
turns left ( for example ) the left side blade has a much smaller cutting
radius , whereas the right blade has a bigger sweep . This is why the
overlap is lost . On Zero Turn decks the overlap is often one and a
half inches of blade and they don't miss anything ( since the deck
sweep can be considerable if you wish ) on a tight turn . You'll notice
that in order to accommodate this overlap , they are a pronounced
"v" shape deck ( to fit the blades in the same total cutting width ! )
compared with MMM decks. Another aspect is the deck depth : deeper
decks produce more air-travel-speed/volume ; hence the improved
grass throwing ability of deep ( often fabricated too ! ) decks.
My ONLY concern with JD decks is that they are rather shallow.