In reply to NP:
I have (when I had Cobras) and use Speedsters or Maverinks for a lot of harder trad or sport**. Soft slippers come to their own, anywhere where you need sensitivity and precission... and smearing. Obviously not that great for lots of heelhookin' or tiny edges where support os needed. Heck, I've used Moccasyms a lot on longer semi-hard trad multibitch routes (up to E2/E3 or so), they climb cracks like a dream and are easy to get off the feet whilst on belay (attach a elastic loop from front loop around yer feet with a cord lock, take off the heel and not worry about loosing the shoe... if more air is needed, you can also easily take off the whole shoe and still not loose it).
So it boils down to what kind of climbing is involved, not what genre (like sport, trad, boulder or indoor).
** hard/harder for me, so E3 or E4s and upwards, or for sport 6C or harder.