Ok thank you Chris, hopefully I'll be ordering some soon but I have a few things to take care of first. I'll pm you when im about to order some.
But they don't have to be PROFESSIONALLY slabbed to preserve them. Good generic shells will protect them almost as well as TPG slabs, especially if they are then stored under proper conditions. This is what I believe as well. If you are hoping to make money, especially significant money, on your finds you would probably do better elsewhere.