I know, I know. You can't run an MX with a 4310. Just don't tell my 4310. I have no problem with it whatsoever.
It is always a hard call when a salesman tries to upsell you. sometimes they are just looking out for you. Sometimes they can't see past their own stuff.
You would have no problem running an MX6 with a 4320. If you are starting a bush hogging business and are very concerned about productivity, the 4520 MIGHT be a little better.
But then, your gonna turn the magic screw up on a 4320 and have a 4720 once the warranty runs out anyway, aren't ya? /forums/images/graemlins/wink.gif
If I were in charge of this product line at Deere, I would have sent the machines to the dealers with a set of 'black boxes' and model decals,. If you want a 4120, we plug in box 'A' and set those decals, a 4520 gets box 'C'. Why are they transporting a ton and a half of equipment over a program change and a decal...?