About 10 months ago I chose between the Charmoz and the Trango Evo S for a winter and scrambling boot. I went for the Trango and I'm glad I did. It seemed noticeably more flexible and comfortable to walk in than the Charmoz (it flexes rather than my foot having to rock), and it also seemed less fiddly to do up and less bulky around my ankle.
I've been really pleased with it - it did all last season's winter work (no technical climbing but some crampon use i.e I'm a 'one axe only' kind of guy in winter!), coped admirably with a week on the Cuillins, has done some more high grade scrambling, and yet has still been comfortable and not felt like overkill when I've just worn them to go for a walk. I suspect the Charmoz would have spent summer in the cupboard!
I found the fit very similar so I'm sure I could have chosen either, but for use that doesn't extent to winter climbing I think I made the right choice for me....
Btw, I've heard the same point gearboy makes about the grip on soft ground but I can't say I've encountered any such problems.
Btw too, I think the Trango Evo S is only rated B1, although I reckon B1.5 would be more accurate
Edited: 07/09/2007 at 10:14