I'm going to side discharge at first to get a good feel for the deck before I start bagging. I was nervous about the hydro-gear transmissions as Ridin' Green said they are just so new. Gravely told me they have run the 5400's for 4 years now with almost no warranty claims so I'm comfortable with that. They do have cooling fans on each unit. Same with the lack of grease fittings, almost no warranty claims on spindles or other non-greasable parts so I'm ok with that as well. I hope to bring her home today! Then I'm going on a mission to find some grass to cut early!!!!