Yes, I did. I read your post on it and remembered that you preffered a bar called (I think) Bar K, but not going to Star Bar to me would be like going to NYC and not trying PDT (even though I don't think PDT is the best cocktail bar in NYC). All the same, I had a GREAT time. The service was fantastic, the cocktails excellent, and our bartender was so willing to engage and talk about how he felt about his cocktail philosophy, despite the paucity of our Japanese and his English. It was a wonderful, wonderful time. Really, the only annoying thing about it was this table of boorish Americans who came in later in the night and were shitty company.
Ron, for bourbon, in Shinjuku there's a bar called Bar Hermit (there are several in the area), but this one on the second floor in Shinjuku is like twinned bars; a scotch side and a bourbon side. It's like a candy store. I sat in the Scotch side and drank like 1.5 oz pours of fabulous whisky for (what I thought was) very very decent prices. Service was again spectacular all for a 500Y cover, which is ridiculous. I hated not tipping the bartenders very well.
Anyway, just south of Shinjuku station there is a major road that runs mostly E-W that cuts through the station (I think it is Rt. 20). Just West of the station on this road there is one of those Tokyo-only ridiculously massive intersections. If you go north at that intersection, sort of along the side of the station, make the first left, and go into the rabbit warren of stores. Hermit is a couple of short blocks down on the right. Totally recomended if you like a nice quiet bar experience. I loved the place.
Oh, and no, I have not tried the High West; my spirits budget has been slashed due to other commitments, so I am coasting along and keeping up with restocks, but that's about it.