Re the wait to cool: these guys popped out cleanly every time I pulled them out. I sprayed with Pam Bake once, then 20 mins later once again. They went a little over the pan. You wont need to wait til they cool.
I still have the dense batter but Im thinking I should toss it and try a total new recipe. Or add liquid to make this batter less dense?
Its worth a try. I would because I hate throwing things away. You could always throw it out it when it doesnt turn out right. And maybe you wont even have to.