Update on this- got 7ml Ethyl Maltol crystals from ECigWizard and it's great- this stuff has transformed all of my otherwise bland flavour mixes - it's a useful flavour enhancer/sweetener and it's very easy to mix - I used 5ml in 30 ml of PG, heated in the microwave for a few seconds and shook it up a bit to mix- now have a reliable and powerful mixing additive. Works well for rounding off
tobacco absolute, which can otherwise be foul on its own even in very dilute quantities. EM also works well to add body to any flavours that you already have mixed - I added the solution I made up to some of my existing flavours (about 0.5 ml of EM solution to any 5ml mix = 10%) and got very nice results. Love it!