Which Think Tank Digital Holster for K-5?

Does any body use a Think Tank Digital Holster with a K-5. If so how good is it, which one do you use, and does it fit a DA* 50-135 with hood please? Also there seem to be some hang-on goody bags which attach to it, can you carry a flash gun, or second lens?

Or what is there about which is similiar?

Thanks Rob

I have that combination, the Digital Holster 20 (v2.0) is the one you want, I don't hang anything else off it, but I do use the belt with other bits attached.
It also holds a Tamron 70-200mm f/2.8 (with hood reversed) and I've discovered this week, a 645N with FA 80-160mm ... that one is a bit heavy ...

.... not at the same time though ....

Steve