I must be the only person in DIY to get rancid cheese and cats piss
No but thats another very good idea.Have you tried measuring the pH on it? I used to find liquids a bit dry when they were a touch on the alkaline side. May be worth adding a very small amount of citric acid and ethyl maltol (if you're happy to vape it) or another sweetener to balance it. May sort the dryness without changing the flavour profile as much as adding another citrus flavour.