It seems you've been getting the numbers but not the system. On a cost basis, surely your two best for a win/saver or win/win for the same amount as the trifecta might have produced better results[?].You seem to be looking for and relying on the "BIG payout" with this.Murphy's law and the odds are probably against you here.

Increasing the number of runners and cost and regularly changing the order,surely gets to the point of a "monkeys throwing darts" system.Would you agree? I've lost track, but how would have all this panned out sticking to your original boxed six?

Anyhow, I have followed your endeavors with great interest and dof my hat to your gameness. It's not over till the fat lady sings!