Does anyone have any insight on what the incremental cost of ownership/maintenance for an Ovation as compared to a J model. I understand the obvious cost such as fuel burn and insurance due to higher hull value. My question is mainly about maintenance. It seems many systems are the same such as gear and should be similiar. There is an extra battery and alternator, O2 system, and maybe A/C and de-ice. Not to mention the extra 2 cylinders. I used to own a J model and have a handle on the cost to own that, but am considering upgrading to an Ovation when I get back into plane ownership again. Of course there is the Lycoming vs Continental debate, which I am trying to avoid for this thread. Any information on cost of annual and other cost would be greatly appreciated.