I think it varies depending on discipline. If you use slalom as an example, I know that a few years ago, 100 point racers from PNSA, ALASKA or NORHTERN skied 10 to 20 points lower when they skied in EASTERN or say ROCKY. The point opportunities in slalom are much better in those regions generally due to a much better field. EASTERN for example have participation from a lot of good college skiers that can help bring the penalty down and at times race conditions are so good that even the later starters can have really favorable conditions. I think it is similar in GS, but probably not as much difference. Speed events are much more even, possibly tilted the other way with respect to EASTERN as they don't do too much SG and DH there.