For the record, I don’t know what narishkeit you are inventing, but Drambuie is listed on the KLBD website as “certified”. http://www.klbdkosher.org/certified_companies/?doCompanySearch=1&resultsPage=&query=drambuie&categoryId=17&searchButton.x=35&searchButton.y=10
And there is no designation on their website of any two tier hashgacha system.