Actually, I went there during a Friday & Saturday, as crazy as that sounds.
I only had a long weekend to get there and those were the best days I could find. Anyway, I found the crowd to be lesser on Friday, of course, but on Saturday the park was open till 12 or 1am (I forgot). It was open an hour longer which was good.
Well, anyway... the point I'm getting to is that you CAN hit the good coasters more than once per day. I think I hit 11 of the 14 coasters on one day (all except Wildcat, Woodstock, & Jr. Gemini).
Monday is OBVIOUSLY the better day (it's a week-day). But you can hit the coasters in the early morning with virtually no crowd, around noon-1pm while everyone is chowing down on lunch & between 5-7pm while everyone is having a dinner meal. Even though the lines may be close to 30-1hr... that's a lot less than a 2 hour wait during the peek time!!!!
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The Great Escape... Soon to become Six Flags Adirondack Escape!!!