Interesting to see hear how it goes. I used to live across the street from the Great Dane and have many good memories drinking Crop Circle. Would love to brew a clone.
I use 1/2" on my kettles but these are for 15 gallon conical racking arms I'm putting together. I'm using racking arms with a 1 3/8" plug that fits inside the bulkhead and a 1 1/2" TC sampling valve to fill my cornies.