I am close to making a decision on buying an exmark lazer. I'm pretty sure i want the 52" deck. I will mow approx 5 to 10 residential yards per week on a part-time basis. The size of yards range from 1/4 acre to 1 acre. Went to the dealer today and compared the 52" Full size lazer to the 52" HP. The full size lazer had the 20 hp kohler and was priced about $7,000. He said that the 27 hp upgrade would cost approx $8300. The HP with the either the 23 hp kohler or kaw would be in the $7300 to $7500 range. The dealer said that i would probably be more satisfied with the full size with the 20 hp kohler as long as i don't try do bushhog with it. He said the 27 hp engine was an overkill. I do believe that the full size would be easier to work on because it's not so compact, but the HP does sit lower therefore lowering the center of gravity, i can see it being able to hold a hill much better than the full size. My questions are: 1. On the full size, is the 20 hp kohler enough engine for mulching, because i cant see myself spending the extra $1300 for the 27 hp. 2. Does the trivantage deck on the HP cut as well as the ultra cut deck on the full size. These are my main concerns.