Don't read this!
I got a small cracked one of them the second time I did it, because I just ripped it apart and didn't cook it and it got some condensation in it. I just covered the crack with clear bathroom silicone and used those silica (sp?) packs you get in shoes. Now there is no water. It can/does bring out the divits as shown in the pic below of another person who has done this mod. But that can be sanded and buffed out. Check out how mine turned out on the bottom!