yeilds are always between 4.5g at the lowest up to 8-9g at the highest.
Using how much starting material? SWISM is very curious to know...
Also, a note regarding naphtha, SWISM has tried distilling hardware store naphtha, and even the distillate leaves a very thin film of something when you evaporate 100mL as a test. He's tempted to assume that the hardware store stuff is as pure as it's going to get straight out of the can, and skip the distillation.
http://dmt.lycaeum.org (http://dmt.lycaeum.org)