I do this all the time now, because my family never eats all of the cake tops and I hate to waste good cake! I use a paper towel to smoosh it right when it comes out of the oven. I ALWAYS burn my hand on the first push, then remember that I need to put on my oven mitt. I can't ever remember to put it on first, it's like I go temporarily stupid
when I do it! LOL One of these days I'll learn though. But it does make the cake nice and level. Denser too , but dense is good in my book!