Roy, I think it's more a case of AC being aware of the condition of the strip and using it accordingly. Mr. Black, being a respected publisher of long standing, can be cited as a reason for CB+ also having the title in the same way that we use other folks research and opinions. None of the above means I am or we are right, it just moves us further into the "not being wrong" camp.
But I'm happy to go along with any decisions backed up with researched examples.
See temptation? Hard to resist, easy to give in to and I admit to being easily tempted, so over to the rest of you.