Okay here's how I see it. Say you have a dub, and you vape it all. It seems that when you vape, there's a fine line between getting ALL the thc without burning it, and getting ALMOST all the thc. So, if I kept the vaped remains, and then when the dub has been vaped, I could smoke the remains. Even though this seems to defeat the purpose of the vape (no toxic smoke), it still seems like I'd be getting less smoke than always smoking joints. The way I understand it, in terms of lung damage, vaping scores very low. So smoking one joint per dub would have less of a negative affect than always smoking joints, since there's not as much material after vaporization. Is my logic sound? Thoughts? I'm going for healthiest/most economical here.