IMO The biggest problem I see, is that some CDers come to conclusions about the GG that they are dating without truly giving them a chance. Yes, when people are with others, most tend to agree with whatever is being said, whether negative or positive. One of the best ways to see if the person you want to date is open minded, is to casually remark about a pair of shoes you may see. Your potential SO will start to see your interest in CDing and then if you decide to get serious, tell your SO. Otherwise, hiding something will always be felt. Once again this is IMO.