I see you have been using JD JX85 mowers. That is what I used for years until they quit building them. I got the last three Exmark 21's our dealer had with the Kawasaki engine. I love them. However, be sure and demo the new Exmark 21" in some heavy mulching conditions. I have used Honda-powered mowers in the past, and found the Honda engine to be "gutless", compared to the Kawasaki engines. Exmark may have found a cure for this, but do not buy one without a demo. in some thick grass.