I have a question for those of you who have purchased a subscription to online mapping services. After you have purchased a subscription to any of the various ones available, are you able to ZOOM in for better quality and details than what you can see when you just browse them without a subscription? I have viewed them on line and have not been able to zoom in as much as I would like toon terrain features. Also is any service better than the next one or are they all the same? Thanks for the help. Mark