Thank you and none taken! While it would seem to be common sense that similar muscle group soreness would correlate to beneficial "cross training", I know from experience this is not always the case. As a quick example, I use to race bicycles at a fairly high level, and I can tell you that running and hiking, which made me feel just as sore if I worked out with enough intensity, did nothing for my cycling fitness.
I do not have the pleasure of knowing too many serious mountaineers who are also avid skiers, so I figured posting this question on the cascadeclimbers forum might get me in touch with a few of those people who have experience in this.
-Steven