I'm been mowing for quite a few years with a 21" honda, but I want something larger to save time and get larger accounts. I've been looking at a Toro 37" and a Ferris 36". I used a 36" Toro with a fixed deck and had problems with scalping on bumpy lawns and on small hills. I had to go slow on small bumps or it would scalp. Was I doing something wrong or do all fixed deck mowers do this? The Toro I am looking at has a floating deck. I can get the Ferris with a hydrostat cheaper than the Toro with gear drive. Which is a better machine for the money and will I always have problems with scalping on bumpy lawns? Any response would be greatly appreciated.