RichLouis.....for some reason this made me laugh REALLY REALLY hard.
OT: a friend of mine worked in a record company auditioning tapes hopeful bands would send in (I wonder if they are now called 'digital download companies'?).
I asked him once to explain to me how he knew he had a hot hit on his hands.
"Oh, that's easy" he replied, "I listen for the FM factor"
"FM factor?" " I quizzed, "What is that?"
"Well, I listen to the tape and what I am hoping for is that pretty much as soon as the band starts playing my first reaction is f&*% me!"
I've adopted the same reaction when viewing photographs. That Cathedral shot has a very high FM factor. You just know it would blow up into a 30x20 print that would look absolutely gorgeous.