We've got a MF 6470 Dyna 6, and extemely pleased with it, plenty of power and very economical, and even though it's a 4cyl, it has a slightly longer wheelbase so rides on the road very well.
The only trouble with them is that they are about as expensive as a JD (but, in my opinion better than a JD).
Ours was featured in last months Profi magazine if you want to read more about it.
Rob
If at first you don't succeed... get someone else to do it!