Could you tell me if there is any difference in cut quality or performance in any way between the Super Z, regular Z, and the super mini? I asked the local dealer, and the guy gave me info. He told me peformance on the Super and Regular would be the same. He also told me I could not get a 52 in a Super, said it would be impracitcal. He also thought the Super mini only went 10, and not 13 mph. He does not inspire confidence in me. Thanks Jay ps. what is the msrp on a super with 52" deck?