Whistler doesn't clock-watch, i.e. you don't stand there until exactly 8:30. They'll start loading when they're ready, which is usually sometime between 8 and 8:30. If you get there by 8am, you may or may not be among the first up.
I wish Fernie did this. I've spent a fair bit of time standing near the front of the line until EXACTLY 9:00 when they start letting people on the lifts.