Well I purchased a new Toro Zmaster the end of March 2007 and it has been back in the shop FIVE times. What happens is the belt for the blades comes off the pulleys, or the belt just brakes. Everytime I take it to the dealer they put a new belt on or adjust the pulleys. I think it has something to do with when I engage the blades, the engine nearly stalls out and rattles the pulleys really bad. After the forth time in the shop I decided to call Toro directly thinking that Toro, a well known, large company would have no problem with giving me some good feedback on helping me resolve this problem but they said the only thing I can do is keep taking it back to the dealer and that they don't have any techs I can talk to. Toros cust service was right up there with Sprint/nextels service HORRIBLE I was stunned that what I thought a great company with the slogan COUNT ON IT would be so arrogant and when I asked to speak with the Supervisors boss, He said I would have to write a letter(IN 2007!?!!?) Anyway Its back in the shop again today and my dealer gave me a loaner. This is my third Zmaster and I have never had any probs before. Has anyone else had any problems engadging blades with the new 30hp on these mowers? Thanks For the feedback.