I go solo at least once a year, I go to both F&G and F&W so both spring and fall. Both have their advantages, it's a little cooler in the spring and seems to have less rain. As far as Avatar, if you don't think you will be back for a while, I guess I'd say roll your dice and take your chance it will be open for fall, no harm in waiting. As far as tips for going solo. If you don't normally eat out by yourself, make a few practice rounds while at home somewhere you are comfortable with. The good thing about going solo is your truly do have a chance to do exactly as you want. Sleep in or not, go rope drop to park close or only spend 2 hours in the park. Eat cake for breakfast or have a refreshing adult beverage when you want to. Since most of my solo trips are during F&W, almost all my meals comes from booths. I'll have breakfast at the resort or a park and the rest of my meals are either from booths, seminars or food and wine pairing meals. Every time I go, I swear I'm not going to book too many seminars and end up doing it any way because so many of them interest me. The little ones they have at the festival center are great if you are solo and are only $15 (or were) if you go to the cooking ones you get a little sample of what they cook and a sample of wine to go with. The food and wine pairing meals are also great to go to solo, you are seated at a big table with the rest of the group and I've never had any problems talking to everyone.