I have had 3 61" tt's with bagger attachments. The first was a 25hp with a 5.5hp pony motor. I think this one did a good job but the pony motor was a major pain. The other two have been spindle driven triple baggers, 1 a 29dfi kawi, and the current one a 31efi kohler. Both of these machines leave debris on the lawn and we have to double cut. The whole reason for having the bagger is to avoid this problem. The deck and blower are regularly cleaned. The blades are sharpened weekly, and the engine is running at the correct engine speed. I wonder if a 52/27hp would be a better option. hp to deck width is a little better, plus less volume of material going through the same diameter impeller and hose. This mower is primarily used for bagging grass and leaves so performance is more important than deck size. Does anyone have experience with both setups?