You certainly can, but a regulated mod will tell you how many ohms are going. I really haven't heard too much bad in regard to regulated mods. Mech mods and wrong batteries are typicaly what make things go boom. Even in those, it's nearly always user error.So I remember years ago that people talked about buildable blowing up if you don't do the coil right. Will premade rta coils be fine? Do I need to put them on that meter thing to check prebuilts?