Nits picked clean so far.

Scotch refers to only two things, whisky and celophane tape.

Scottish I think is a bit more broad use, and that may depend on which side of the pond from which you hail. It is not uncommon here in the States to describe onesself as being "irish" or "scottish" or "german" or "dutch" when in fact we mean we are to some degree of that heritage or descent, bloodline, when in fact we are americans of "scottish" descent, or Scottish-americans.

Interestingly, in my opinion and experience, I think the word and usage of "scot" is pretty infrequent in the States. While kilted I do not ever remember being asked if I was a "scot", rather always asked if I was scottish, from scotland, or rarely of scottish heritage or descent (what I prefer). But I bet the usage is different in places that were historically part of the british empire.

just my tuppence---excuse me, two cents.

jeff