September 2002....had a handful of ADR's and it worked out well....mostly unnecessary.
December 2003....a few more ADR's and it worked out well.....tourism up.....and even in low season, most were necessary.
December 2005....more ADR's than ever, wish that I had made more.....still a low season trip, but TS meals required a plan...partially due to the increased popularity of the Candelight Processional package and the Fantasmic dinner package, but it was a Free dining period.
If I were you, going during a Free dining period, I would make some ADR's. I would make a basic park touring plan. It will be hot and humid. Plan to drink lots of fluids....don't go on a commando park tour.....and be prepared to take it easier due to the heat, frequent rain, and the fact that you should have lower crowds.
Happy planning. Maggie