Some mids/regs are just really potent, but dont taste or smell as good as kb and they usually arn't as fresh. For example, right now I have some kb that smells and tastes really, really, really good and its so sticky i could prolly press it against a wall and have it just stick there, but its potency isn't all that much stronger than my mids which are pretty dry, and dont smell or taste anywhere near as good.