I'm another 50%-er with a wingspan 3" longer than my height, but only 5'4". I comfortably ride both WSD and non-WSD bikes. My bike size is generally (very generally speaking!) a size bigger than my height might indicate, but at least a couple sizes smaller than my inseam will allow. Clear as mud, right?

The bottom line is that you, IMO, need to ride a bunch of bikes. Focus on how it feels, not the number on the tag.