I've narrowed down my decision of a ZTR to a Ferris IS1500Z. Now my only decision is between a 44" w/ a 19 HP Kawasaki and a 48" w/ a 21 HP Kawasaki. The difference in price is only $300, but a big concern of mine is cut quality. Many people have said that the cut quality goes down as the deck size increases and that even in this case (only 4 inches), there's a noticable difference between the 2 sizes. Has anyone found this to be true? I mow Bermuda very low, so small differences are noticable. The other considerations are: + 44" - Possibly able to get through more gates. + 48" - Slightly greater trimming capability. + 48" - More productive since it cuts more at a time.