As Embury says, there's some sense in using a Scotch-based liqueur, and although this version of the Bobby Burns is rarely seen, it's worthy of a trial
Please tell me these new (are they new) alcohol unit breakdowns are wrong... Otherwise I've massively been underestimating my intake! 50ml of 40%abv spirit is 2 units. So this seems unlikely to be 4.4 units!
We've just put live and looks like we have a bug with accounting for drops and dashes. We're taking it down while we fix. Many thanks for your feedback.