Vape even more until you get used to it. That's what I did from cig to vape 12mg, vape 12mg to 6mg.

Try kraken 13.2 mg nic. Sure vape less and conlanfirm stop smoking edy. Gao gao strong.

Im selling iPV3 Li (Silver colour) if anyone interested btw.

Oh dear.

Your badan haven't got use to 6 mg nicotine intake and you are already trying to reduce it further?  This is the classic mistake made when people want to stop smoking. 

Reducing the amount of nic intake too early without giving your body a chance to re-adjust itself will increase the intensity of your craving for nic.  You will end up vaping more and the overall daily intake could easily exceed the amount that you normally consume at 6 mg.

Suggest you stay back at 6 mg and instead slowly reduce the number of ml vaped daily.  Once you can reduce the total ml by half, then only switch to lower mg.  This way you wil not give your body a shock and increase your chances of success at nic reduction.

Use dripper on 6mg la 

It is not whether you vape 6 mg or 3 mg.  The amount of nic you push into your body daily is more important.

if you only vape 10 ml of 6 mg juice a day previously, and now you vape 30 ml of 3 mg juice each day, you have not reduce your nic intake.  Rather, you had actually increased your consumption of nic.