I've made butter from vaped weed before. I've never seen dark vaped bud... it's always a light gold IME. But... I guess that's if you want to keep hitting and not worry about the flavor lol. But, the butter turned out fine... gave me a mild body high, nothing like the butter I make from shake or hash. It's less potent and you need more, but it definitely beats throwing it away. It also tastes totally different... sort of like burnt popcorn mixed with resin haha... pretty gross.