PPA ..while it is true that EACH PARK can set it's own restrictions, i think it is worth every penny. There are clinker parks in that system, as any group i have belonged to, but if you look at the park reviews BEFORE you drive there, an look at them with google earth, you won't get burned. I only once ask to be excussed from our reservation because of the condition of the park, and they did just that ..without penalty. go to their website (don't have to belong) and search the parks listed...AND CHECK the restriction section of EACH park.