You need to go into a TT membership with your eyes wide open!!! If buying a used contract READ it!!! Then tell TT that when they send you a contract to sign it can not have any added language. I know lots of people that bought Platinum used contracts. Nothing in the contract about high use but they signed the one TT sent and found they were screwed with having to follow high use rules. They should have been able to stay 3 weeks, out one week then return for 3 weeks and so on anytime but once high use season hit they could stay 3 weeks then had to be out 28 days.
Look for a used "Elite" that has ALL the TT. Nico and Leisuretime parks. If full timing it's well worth the $$$.