Perhaps some of our east coast brethren were spectating at yesterdays or today's races at Killington. It was great to see another WC race in the US and back at Killington for the first time in 25 years. Having said that, wow was it one ugly race (yesterday, have not seen today's yet). Conditions just absolutely sucked with slushy break away snow from top to bottom and dense fog for large parts of the race. I am all for more WC races in the US but in conditions like these I'd pass every time.
As Harald has said in the past, everyone skis the same course and Tessa Worley was in a class by herself, but ice is always the fairest surface and the odds of getting ice at Killington are probably 50-50 throughout the winter.
They will have the same issue at Squaw in February when it could be cold and perfect or 45 degrees and sunny those days. I guess that is the case at most venues but there still are some places where it is usually freezing or below from December through mid March.