I've thrown in the towel.
There was a good discussion with oe about the chicken and egg effect of cash in a trade; ie, a good owner is in a position to accept cash in a trade, thus is it cash in trade keeping him on top, or he's on top therefore attracts cash in trade scenarios?
Interesting food for thought.
Then tweedledee and tweedledum wander in with their anti math, and it's screw it.