I've been running Scag mowers for 6 years without any major problems. Next year I will buy a new 48" walk behind and a 60" zero-turn. My local dealer no longer carries Scag and they now carry Exmark. I'm thinking about buying a Lazer Z but I worry about the sealed spindle bearings and the clutch. How long will they last? I've never had to replace a bearing on any of my Scag mowers. My Turf Tiger that I use daily has over 1500 hours and a walk-behind with over 2000 hours with no bearing problems. The clutches have never been replaced either. They have been adjusted but never replaced. I think the Exmark uses a non-adjustable clutch. I do like the way the Ultra Cut decks perform. I believe they cut a little better than the Advantage decks at higher speed. Any help with my concerns will be appreciated.