HAvent tried + thats next on my list, but the PG + is hard to find around these parts! I hear its tastier like you said added terpenes and a little more potent! From tetra labs website "PureGold Classic is a pale yellow viscous liquid. We occassionally produce variations, such as PureGold Plus, which contains more flavinoids than PureGold Classic. Flavinoids are anti-oxidants and also pigments, which gives PureGold Plus its deep amber color. Other than addition of flavinoids, PureGold Plus is identical to PureGold Classic. Both have identical effects although tasters report that Plus is slightly more flavorful. PureGold is generally heated and inhaled in pure form. One drop can last a long time if properly smoked."