Looking at Morbark Stump Grinders? Any Input?

[treetech503]

I have been looking for a stump grinder for a while and thought I had narrowed my search. Then i found a Morbark for sale and have heard great things about the chippers but not the stump machines. They have the different wheel design and just want to hear any info that you guys may have. The unit I'm looking at is the D 52 SP with the 34hp cat.

 

[lawsonstree]

ive got the hydrastatic d52 with cat deisel good all around machine no problems yet also had the d52 with belts and cat deisel traded it in on my new one.

 

[treetech503]

This one has belts. What size stumps do you tackle the most? Maybe a better question is what stumps are too big for the machine to do efficiently?