I left the belly deck on. 18 minutes there at full throttle with the "cruise control" on. The Old X-585 made good time there. I could feel the momentum of the rear wheel weights going down the long hill, didn't notice any issues climbing the hill to home. I cut him a few paths out back to buildings after I cut around the house. He gave me a Miller 16oz bottle when he looked over his Craftsman that runs fine, but has a seriously messed up deck.
Tomorrow the rear 48" tiller goes on. It was 34F early this am before the sun came up.