Thanks for the clarification on the MX freeride line "X-Fire" boot as opposed to RX "X-Fire" boot.
I don't doubt the current trend toward fatter skis. The Fischer RX-10 model I'm referring to is a somewhat detuned GS race ski with with a radius 105-65-91 @175cm. It showed up in Canada a few seasons back and then disappeared. I have a pair of them. The model I'm referring to can be seen at:http://travel.canoe.ca/SkiCanadaSpri...her%20RX-10%22
Since FIS GS skis are increasing in minimum radius to minimum 27M in 2008, I suspect that skis like the RC4 WC RC and other recreational GS racing /skier-cross type will soon increase in radius some as well. That's my reason for speculating on the the return of an RX 10. And it is pure speculation.
The RX-Fire has the same dimensions as an earlier version of the Fischer RC4 WC SC sidecut 123-66-102. It is also shown in the same Ski Canada link above. You're right, it is a Hyper-Carver and they seem to have gone out of fashion in North America during the past several seasons.