I am starting to think my snapper hydro pro 48" is too big. Does anybody else run 48" walk-behinds? The only reason I bought the 48 was because I got a good deal on it. I really wanted a 36". What is the good 36" these days. Can a 15 hp pull a 145lbs guy on a proslide quickly and easily? I sometimes wonder about my 17hp going up hills. Thanks for your time guys.