Hi,
I've been to Snowshoe MANY times (including going up in the fall for the Blues, Brews, and Barbeques party). Since they opened up Snowshoe Drive off of WV 66, I've been coming 66W, 81S, 33W, 28S (goes through GreenBank and the observatory), 66W (WV 66, not VA 66) through Cass and about 3+ miles after passing through Cass, turn right onto Snowshoe Drive. Follow on up to Top of The World to check-in.
It has taken me about 4 hours taking this route from Centreville, VA although I've not encountered any signigicant snow while using this route.
Later,
-Warren-