After Adam's post I decided to take a chance and renew ours. I figured worst case I can probably upgrade them if need be but I'm still pissed that we needed to buy 4 passes instead of 3 because of the new rule while every park in the country other than six flags is free for kids 3 and under.
I bet you can thank Wiggles World for that one Wade...
Actually, I'm wondering if we can thank Disney because they changed it as well. The question is who did it first. My guess is Disney quietly changed it and Six Flags followed. Then if people complained, they can easily say that the industry leader Disney has the same policy.
As for SP holder days, etc. I'd sit back and relax and see how it goes. They seriously do value SP holders and will likely do something to make up for it. Certain things they seem to be just winging it and this is one of them but I'd be shocked if they didn't do something for all of the SP people.