Consistency is an issue I've been having as well. Just picked up some Burmanii mixed at 50/50 on 7/10/13 and it is great! I already had about 4oz at home, but I wanted to try it at 50/50 instead of 70/30. Did a side by side comparison last night in a
rda with a fresh wick. Results? The doubler (which I used to mix 36mg down to 12mg) had very little flavor. It is stored in a dark glass bottle with lid on tight and was mixed on 6/26. I hate to say it, but I'm considering just
throwing my 4oz out because it tastes like nothing.
I also have a doubler of Ultimate Vanilla which I also used to mix down some high nic vanilla. Same thing. Can KINDA taste it, but nothing like just straight vanilla with premixed nic.
Twice now I've ordered a doubler and twice they have very little flavor. Need some QC over there because the inconsistency is driving me crazy.
Oh, forgot to mention the AC. Same thing, high nic with doubler to cut it down. This one hasn't suffered the same fate and the others, but it is noticeably weeker as well. This one is still tasty although I know it could be better