Start to refine the basic shots. Learn how to throw floating upshots that could go into the basket but will definitely stay close. Learn to throw a roller. You can never have enough weapons in your arsenal. Don't switch discs in and out of the bag based on how pretty they are, or how they performed when you last threw them.
All discs fly.
This will help you really get to know each disc in the bag. A player needs to know exactly what a given disc will do when he throws it. If you're not sure weather your driver is going to fly straight of flip then you probobally wont throw a very good shot with it. If you KNOW what the disc will do then thats one less variable in the huge mathmatical equation that is throwing a good shot. I can tell you what the appeal is to me.