How long do you wait before flipping out two 8" cakes from pan to avoid sticking!
Judi is correct, but i think if you use parchment paper on the bottom of your pan/pans you will not have a problem with sticking ever.
You let the cake cool, before you take them out. If you take them out too early, they will stick to the pan. Put them on a cooling rack and let them cool down. After about 15 minutes take them out. They should be fine then.
15 min or so
Until they cool, then it should be safe :)