Nice job Chick. I am not an expert and was taught this info a while back, probably by YOU, or someone on this site I'm sure.
For me, this is the best way. What I have retained in the past is the G. The spacing from the lower part at the 90 bend, to the top of the roll around is MUCH taller. The repro is VERY close in that spot. Easy to spot in one second. Good luck in your search. Danny