With the help of this website and reading countless posts for the past 2-months, I'm leaning towards purchasing a Ferris IS1500 48" ZTR. With that said, two engine options are available for the 48" IS1500 in 2012: 1. 26 gross HP B&S Commercial Turf Series 2. 18.5 gross HP Kawasaki FS600V** I'm not a B&S fan, the Commercial Turf Series is relatively new, and I think the 18.5 HP Kawasaki may be a bit under powered. To my knowledge, the FS series Kawasaki are rated at 500 hours. Anyone know how many hours the Commercial Turf Series B&S is rated at? I found one post on Lawnsite that wasn't all too helpful. Thoughts on this engine?