Yep - Dalwhinnie Corries, as well as the other one in Drumochter area that was competing for development (at Jean's Gully) are both on my to-do list Hustler. Hopefully sometime this winter! Interested?
Though I have always fancied one or two choice descents on the other side (and in full view) of the A9
so whenever I get to Drumochter it'll be a toss-up as to which side of the road I go. Though the snow should decide that for me, given the very different aspects.
When I passed through 2 days ago none of the Drumochter lines (that I'm eyeing up) seemed particularly well filled at the moment. However - with the high winds forecast it'll be interesting to see where the snow drifts to.