Cindy - I have used boxed angel food mixes many many times (easier that separating all those eggs!) with very few problems. However, add-ins to any angel food cake are tricky, and I am rarely brave enough to try. Did you turn the pans upside down after you baked them? You do need to flip them, usually over a bottle or the like, while they cool.
"Is ice hockey hard? I don't know, you tell me. We need to have the strength and power of a football player, the stamina of a marathon runner and the concentration of a brain surgeon. But, we need to put all this together while moving at high speeds on a cold and slippery surface while 5 other guys use clubs to try and kill us. Oh, yeah, did I mention that this whole time we're standing on blades 1/8 of an inch thick. Is ice hockey hard? I don't know, you tell me. Next question."