Here's an old guy's experience.... 1. "Willing to trade his own account" means nothing unless he's making size trades... one-sies mean nothing. 2. He's more likely to show some success in a short period of time (1 week, did you say?) than over a longer period. a. If he does well trading small over a short period, maybe you're hooked? b. If he does poorly, he loses little for trading small and you don't get hooked for $20K. If he's trading his own account and putting several $Million at risk, that could be substantial. Otherwise, short term performance means nothing, no matter how flashy.