Hi BuffyTheBakingSlayer, nice name by the way. I see you are having a lot of trouble with your cake, (read past posts), I like making cakes from scratch but for large orders I use BakeMark cake mixes because scratch cakes are finicky, and if you get one thing wrong, that's it, you have to start over. I will give you a few chocolate cake recipes from school that are pretty sturdy, reliable and have great chocolate flavor. Your own recipe might be okay, maybe it is the technique you are using, like I said who, knows with scratch cakes. You might not believe me but in Bakery Production class at school we only did scratch cakes for a final grade, the rest for the bakery were all mixes and bases. It is a matter of humidity, room temp, the temp of the ingredients, and the temp of the water, that will make or break a scratch recipe. So for production sake we had to have the same product consistency every time, hence the mixes and bases.
When I bake my cakes, I grease the pan with home made pan grease, and line it with circles I made from parchment paper the same size as the pan, you could use wax paper too.
I bake the cake according to the instructions and when it is done, when the tooth pick comes out clean I let them cool but only for about 7-10 minutes or until I can safely handle the pan. I always cover my work table with enough of sugar to lay my cakes on it, after I take the pan and invert it onto my hand, then I place them right side up on the sugar to cool, believe they wont stick after they cool, if you don't want to clean up the extra mess just put the sugar on a sheet of wax paper, then when you are done you can just toss it. I don't mind the hump, it usually happens when the oven is too hot, I just trim them after the cakes have cooled completely and keep them for cheese cake bottoms, cake pops, or cake Spackle but they don't always last to save, because I have little two legged critters the snatch them as soon as I turn my back,lol
I hope this helps a little.
sorry I edited because my keys are horrible on laptop,lol