Well I've finally done it, after months and months of hemming and hawing I purchased a new Ego 21" push type mower. It arrives on Tuesday (4/26) and my lawn will give it a work out, but I wonder if I've made to right decision. I have ankle issues and I'm worried that I might be better off with the self-propelled model because of my problem? I'd hate to be disappointed because the model I've chosen is harder to push than I thought (my lot is about 1/4 acre) and I'd have been better off with the self-propelled version. The Home Depot near me doesn't have any displayed on the floor where you can really get the feel for the mower they're all mounted a good 5+ feet off the floor and there's never anyone available to provide assistance, and I'm not the type of person that likes waiting. So my question is this is there a big difference in the "push-ability" between the two models? Does the transmission of the self-propelled version completely disengage when not in use or does it add any resistance when not used? These are all questions that could be answered if Home Depot did a better job of displaying the Ego line but that's a conversation for a different time.