Oh I's signing!

I actually don't like his dreads, never have, I think he looks much better without them.

But more than that I think what you say about it softening his character and making him more approachable makes complete sense. I see the dreads as a sort of symbolic reference to his days as a runner, and now maybe it's time he lost them to show his acceptance of his place on Atlantis (hell, what do I know? Frankly I'm just trying to make myslf sound less shallow about the whole thing ;)