In reply to wbo:
> isn't the cube b3? I don't know, i fit scarpa rather than sportiva, but as a reference i use Charmoz and don't feel the boots are holding me back >
I assume the Nepal Cube is B3 and the Trango Cube is B2 but their website isn't entirely helpful. It seems to feature lots of almost identical looking boots without telling you what the difference is between them and what they are best for, just lots of meaningless marketing bullsh*t.
The Scarpa website is a lot better, rating boots for each different activity. The Charmoz Pro is a contender but I haven't tried anything on yet so I don't know what fits my feet.