In an effort to see if I can step down in nicotine strength to none at all (started vaping 12mg and have been buying 6 since November 2013), I bought Cuttwood's Unicorn Milk v2 and Grimm Creation's Vanilla Custard recently with no nicotine. I sampled both on my rda and found the flavors to be muted from their 6mg nicotine versions of the same flavors. It was sorta like drinking Coke before, then switching to Diet Coke; the flavor was recognizable, but not as strong. Just me or is there science behind it?