I bought a 2014 CZT 60" with the Koehler Confidant ZT740. I picked her up in May and have ~30 hrs. Previously I had a 50" White Equipment ZT. The 2.7ac I cut used to take ~130 mins. Now I'm at 55 mins. I up graded to an Exmark suspension seat, best money spent since I'm running full out 90% of...