Both Lahinch and Renaissance Club look far more compelling than most of what we are offered here in the good ole USA. I can't even begin to imagine the mindset of anyone who would assign a Doak number based on professional play during a very specific time period that is largely the domain of mother nature, but hey, if that's your game, have at it.
I will agree that the Irish Open, Scottish Open and Open Championship represent a trifecta that we can't approach here.
But no one else can approach it either. Not my friends down under, not on the US tour, not in Japan, nowhere. Maybe if they moved the old LA Open to late March, and then had Riviera, TPC Sawgrass, Augusta in back to back to back weeks, we could see that. I kinda doubt that will ever happen.