Mechanical Engineer/ Toolmaker retired after 36 yrs. Stopped smoking the day I bought my first vape pen and Evod Tank (11/4/15). Started mixing 2/16 and haven’t bought manufactured juice since. Been building coils since 10/16. Love every aspect of the Vape thing. Have helped several to get off cigs., that’s the main reason I’ve stocked up, always happy to help someone out who needs it !