Just added aeros...what should I know?

Start in an area with minimal traffic (ideally none), farm animals, and small children. It's easiest to start on a straight, flat course. My first few times I wore running shoes and didn't clip in, until I built up some confidence. Work up some speed before going into aero--oddly, my bikes seem to handle better in aero when I'm going faster, maybe as you have more forward momentum. As soon as you get into aero (or before, on a trainer), practice getting out of it, one side at a time. Usually one side works better. Gradually build up to where you can handle gentle curves, downhills (not screaming ones, though), and minor bumps while still in aero. Then try all this in a race. It's not as hard as it sounds.