Oh heck I realised almost as soon as I posted my last post (by which time it was too late) that no one had actually suggested that emotional guardedness/retardation was a uniquely type 5 problem. I just thought I'd knock off a quick response rather than spend ages crafting a robotically-careful or otherwise brilliantly worded reply. I actually hate myself sometimes.
That said, I disagree that emotional guardedness = emotional retardation. Even if the former is true, you could still have a high EQ and be very thoughtful and sensitive to others.