Whimsy. I thank you kindly for your advice. But I don't want to ruin my amateur status. I only trade for the sheer visceral pleasure of it, and monetizing the sport surely would ruin the fun for me. As to black boxes, my "system" is utterly untestable. Partly because it has so many rules, and partly because I don't even know what some of those rules are. Therefore it cannot possibly work, and it would be a waste of time to code it up. Besides, even after many years of trading, I still don't know what I am doing. It is a work in progress, which, I fear, I will not live to complete, as I am a dying man. And I wouldn't appreciate a better champagne anyway. I just start with a good one so I can finish with cheap ones. Thanks for responding. ET has become so serious that it no longer suffers fools, especially old ones. Mike.