I'm sure the first time I had Hooker (which I think was last Feb, but could have been the year before) it was only available in a couple of places, and was cask - and had a great hop aroma and flavour to it. I remember thinking that the Irish craft beer industry had finally discovered what a hoppy beer tastes like!
So, would that actually have been a keg version? (I wasn't the one at the bar getting served, but thought the Hooker pump clip was on the handpull downstairs at the B&C on that visit). Why do you say dry hopping wouldn't work for a cask version? Curious as there are many cask dry-hopped beers over here (England).