First 71 half got a large grill from side to side. Second 71 half and all 72s got a small blank space on grill in the middle.
That's valid to all hoods, not just for the AG hood
We are sure that is a absolute fact? No 72s came with the hood RJS has pictured?
If we consider the large grill setup was gone on the same 71 year, well, shouldn't exist 72s with that splitted grill... however is there a chance some 72 with RC hood could get a 71 due the low production of these and they had to kill the stock? Maybe there is a chance some 72 got a 71... dunno
Is just an opinion
