Ratio of Vaped Bud for Ganja Butter?

[skanking1121]

I only vape 2-3 bags which gets me plenty high. I could keep vaping and get the usual 5-7 bags per 0.4g of bud but I conserve when it's cannabutter time

Whoa whoa whoa wait just a sec... you vape your shit 5-7 bags? what temp? around 200C? Cause I usually only vape it 2 times max with .4g and that's when I think it's all gone... Not true?