I have a 2004 Bobcat 52" with a 19hp Kaw. This machine must have come out before the horsepower really went up on the ZTRs. This wouldn't be my first choice of motor size, but let's leave that for another day. Anyway, I notice that when I cut tall grass (gone to seed), that it will leave the grass slightly longer between the blades, especially when turning. Is this a hp thing or more a fact that these or this mower just wasn't meant to be a bushhog or hay bailer? FWIW, I sharpen the blades fairly regularly and have tried my best to level the deck per the manual (down 1/8 in front for this mower).