so I have been off analogs for two months now but the job I'm currently at gives me the opportunity to vape all day.  I originally started out with a nautilus and would only vape 3ml or so a day of 18mg nic.  Not too bad right?  But now I got a Kanger Sub Mini and building my own coils.  Due to the increased wattage on my ipv mini 2 I am sucking down 10ML a day if not 12.  I lowered the nic to 6mg but my question is how much is too much?