In reply to LDudill:
> on the other hand we would probably have to ridge to ourselves
My logic makes my think the rock must be off the ridge itself relatively low down, otherwise it would have bounced to the side of the main ridge line and not hit the hut.
As said above the scramble approach to the hut and route will probably mean you meet staff or workers who won't be too impressed. These are probably staying in the hut midway down the valley and will spot you either way.
The snow traverse on the route will be harder work for the first few up, no trench or bucket steps to follow.
Post edited at 11:44