I am an expert. My only ski is 84 underfoot. i have never skiied at whiteface, though will be regularly for the next few years. i can of course make any ski "go" anywhere but don't ever want to be absolutely "stuck" (I don't think this would happen at whiteface because of snow so deep that I get stuck without 98 mm skiis. Does anyone know?) it is not an option for me to get a Kastle that is so specific as to only used once a year if at all.--If I'm not there on the day it snows--well, then, I would never use that ski. hence why I'm thinking narrower- great on ice--smooth carves through moguls, play my way down through the trees. Won't be buying another pair of skiis (or skiing anywhere else) for about 4-5 years.
I picked up a pair of RX 12 for $575 with bindings. Haven't opened them yet--still in plastic. Didn't know if I should keep these as the 1 pair of skis. Or should I do the MX78 or 83.. Of course the ski i have now is a 84--doesn't edge well, though, even with a tuning. Thanks!