great trader
We've had great fortune trading our CH sport week. We have often deposited a sport week and then picked up a winter platinum week at any Marriott we've wanted (Desert Springs, Laguna Coast, Oahu, Kauai, and any of the resorts in Orlando). I love Cypress Harbour, but am not sure I'd buy special season there. It is, as said, relatively easy to trade into. We often go in the fall for a week by trading a lockoff. If you actually want to occupy during special season, then I'd consider it, but if you want to trade, I'd buy the less expensive sport season.
I do love the ambiance of CH, and would definitely recommend the purchase of special if that's when you want to occupy.