Sloe gin is the 'Slow', Sothern Comfort is the 'Comfortable', vodka and orange juice are the 'Screw' (as in Screwdriver), ice is the 'Cold', overproof...
Enjoyable drink. I would probably use a overproof Navy Rum as I found the white rum was a bit lost. Never had in the 1970s, but did enjoy. It does improve with dilution from the ice and loses some of its sweetness.
John Hinojos