I've always had the hardest time getting dress shirts that "fit". I recently realized that I seem to have a rule that if a dress shirt drapes over the belt or waistline at all in any spot that the shirt has too much excess fabric and the shirt is unwearably sloppy. But all the sudden I realized that I hadn't ever really heard that rule verbalized, so I'm thinking I may have made it up in my head. In order to avoid this "issue" I always need to have darts added to the back and usually need the waist taken in, but it recently occurred to me that maybe a slight bit of fabric folding over the waistline in one small spot isn't sloppy but rather just relaxed. Thoughts?