I think that it is possible, but obviously unlikely. Living in Montana I don't have the option to play in the winter and there are no indoor ranges in the area, so I don't get to play or really swing a club for that matter from early October until March. To be honest I have been on the range for a few weeks and played my first round last Friday and played better than I did last year. I didn't score as well as I am used to, but pretty darn good for the first round out. My ball striking with my irons felt a lot better than it was last year, and my short game shots felt more natural and played better also. Sometimes time off is a great thing for golf. Obviously I would like my layoff to be much, much shorter, but you really don't know what a real Spring is until you've went through a long Winter... I obviously think that with less time off or no break at all that I would be a much better golfer just because of consistency, but I do think that you can play good golf without swinging a club for the winter.