Well he did give the constriction he likes and then embellished, give him a break. I'm not a 27 yd shooter but I like a full choke .732 bore with .035 constriction, when I am on it grinds them from the 16 on back to the 27. But then so does a .025 Imp Mod. with the same .732 bore. I also have a fixed choke .740 bore with a fixed .036 it does the same. I believe in the old sayings "Choke for smoke"and "Speed kills" 1200 + fps at all yardages. Just the humble opinion of a mid yardage shooter. J.W.
Check out the link above for an honest answer. I use .036 from the 27; I have a factory fixed .042 barrel and it certainly does not blow a pattern. They make Extra Full turkey chokes in excess of .050 but I don't know how they pattern.