Kate may be right, or wrong. I am an ex-Newport smoker and started off with 36mg True Menthol from Puresmoker.com. After trying many other flavors from other companies, I decided that True Menthol is all I will buy and vape from now on. My last batch was 24mg. It is fine, but when I am really dying for an analog, I drip some 36mg. As a Newport smoker, you should seriously consider True Menthol from Puresmoker.
As to the 'buzz' you speak of, I have never had that from e-juice or analogs, and I smoked those sticks for thirty plus years. All I can say is that the throat hit and mouthfeel of True Menthol is very satisfying.