Can I put crack and meth into the same pipe and smoke them at the same time? I've read that they have different vaporizing/melting points. I like the intensity of crack but the longevity of meth so I feel like it would be nuts but a Hadi mix. Has anybody tried this or is it worth it or should I smoke two pipes back to back. I'm not sure if one would melt/vaporize before the other so it wouldn't be worth it? Anyone have input?