For the most part, I'm with "JCC" and his inputs here. Especially when it comes to 'why' a configuration 'works'. Some of us have dumb-luck when it comes down to what 'works'. There's a decent amount of 'engineering' that goes into any scoop that functions to it's capacity. As much as this subject seems to be beating a dead-horse I'm glad to see some evolution in thinking is happening.