Just bought a new 2012 John Deere 930a Zero Turn 72 in mower. Anyone have an experience with one, especially any problem areas. Bought it from dealership with over 4k off MSRP. They are going to a new Tier 4 engine system next year that has a lot of new computer controls, etc. Did not want the new complicated and unproven technology. If we get some good rains this winter, we are only a couple of months away from mowing again. It's Dec 6th and we still haven't had a killing frost in East Texas...bugs still having a good time. Merry Christmas