Hey I would like to purchase a new pistol case for my glock 17. I've seen some pictures of people who had customized their foam w/ a hot wire and cut out the shape of their liking. I would like to do this as well, but most cases I've seen come with foam that is not customizable. My question is.. do I have to buy the foam separately? I'm thinking of getting a double pistol case with combo lock. Any suggestions? Btw I have a foam cutter that heats up and works really well so the hot wire would not be necessary. Thanks.