There is only one issue that Im aware of on Mt800's.....

Reaction arm bearing.

Drill your salesman about it, get it in writing, done deal.... take oil samples, change oil more often than not in them.

Kudo's to Ziegler, has been 100% on top of this issue.  (in our case anyway)


B or C series no matter, unless your a stickler for electronics they are both the same.