Yeah... I feeling like if I do it I could just roll the flip flop hub so that if I'm feeling really tired I can just flip it so I can coast. I guess my fears are more about being able to keep up with my pack of friends (all non cyclists) and not totally conking out so that I can't have fun at night. Again, I ride a lot but I am just a little fearful.

If I rode my fixed gear though I wouldn't need to worry about rack and panniers because it is already set up that way, it is an older "touring" bike so the geometry is a little more relaxed, and I'm accustomed to riding her all the time.