You're right. Across all of the UK and Ireland, every pub and bar pours carefully measured shots. I can only think of a few high end hotel bars, like the Four Seasons London, that allow their bar staff to free pour into a glass. I'm not sure if that's the reason this place is so popular, but it can't hurt. Get there early by the way as it fills up quickly around 6:30pm every night.

I didn't try the Pappy Rye at first since I could see the bottle was nearly empty and probably not enough there for a healthy pour. Then I noticed that there was another full bottle right behind it! Ditto for the Bourbon. No shortage of Pappy here.