[REQ] Vaportech Drip's OG

I have been trying to clone Vaportech Drip’s ‘OG’ for some time now, throwing away several mixes in the wake. I know the mix is 'tobacco -caramel -vanilla ', but cannot find that specific taste. Something is missing. Have tried smoothers, thickeners, sweeteners, different makers. Does anyone have any advice. OG is my favorite vape, please help.