From my experiences, they start on the Gondola with Excelsior to Valley. If there is an inversion and they can't blow Excelsior, then it is Valley served by the Facelift. I guess they could do Excelsior to the LWF Double with downloading on the Gondola if need be. I started my season there in 11-12 and they had the Gondola and Facelift open serving Excelsior to Valley. In 12-13, they opened I think around the 17th with Facelift serving Valley. In 13-14, they started with the Gondola serving Excelsior to Valley, but no Facelift. The regulars at WF (Scotty Jack, Coach, etc.) can probably tell you more accurately what they usually open.
I've lived in New York my entire life.