Thanks one of my problems was the load order, NMM, was sorting the loader. I had to sort the mods with the games load order program and that stopped the CTDs. There are still many things I don't understand about mods, mainly how mods should be sorted (I've been using BOSS) Turning mods off and on for different characters. If I have a mod for character A, turn it off and make a character B, and then after a while, return to character A and turn the mod back on will that mess up the mod and the save especially if that mod has progression too it?