This is for alpine routes where weight matters. I use an Edelweiss Axis 10.3(?) for cragging. It's 71 g/m compared to 55 or 56 for the sub-10mm ropes. I bought it cheap... and saw the Fuse on sale, so I was considering it. I may suck it up and go with Mammut, although I hear good things about BlueWater too.
alpine routes, where weight matters? if you say so.
2 lbs makes a difference on an approach with 4000 foot vertical gain. as does extra bulk in the pack.