I bought the domains and cracked an edge the 2nd time i used them. but i got another pair from K2 at trade price (this time i dulled the edges under foot). I love this ski only used it at a snow dome so far but they are so much fun, very light, responsive, just a great playfull ski.
K2's would be just as durable as the ar7 if not more, but i would go with the ar7. Armada ski's have got a good feel to them, very lively. I would go 181 and mount at -2.5 with the sth14.