@The Artist. Could you explain a little bit more the Avg Duration vs. Avg Winner parameter? You can specify both in the advanced search as far as i know , there is an Average Trade Time (h) where you could input the hours , and the Average Pips bar where you select the number of pips.
Yes of course, actually I was just trying to refer to a more intuitive way to eliminate strategies with high win ratios due to lack of proper downside protection.
That's the most common way for followers to get burnt, along with martingale-type strategies, but I have not seen many martingalers on Zulutrade so that's fine.
As you said, you can toy with average pips and average trade time inputs but that is not going to take you very far if you want to avoid traders who do not have stop losses and carry their positions for days until they reverse (a mostly unprofessional and unpractical way to trade). That's because those statistics apply to both winners and losers.
However, let's say you want to eliminate any dangerous provider who let his trades run until they are green. Those guys usually will have a >80% win rate, and each good trade will be closed after anywhere between +5 and +100 pips, while most bad trades will be kept until point of no return, -300 to -500 pips, or right after they have become positive after a large drawdown, 0 to +20 pips. Obviously I generalise but you will notice that the pattern is usually that.
What you would want first of all is a statistics that gives you an Average Trade Drawdown, because if the guy is not good, he can hide behind great ROI and high Win % but the Average Trade Drawdown will be very high, probably around -100 or -150pips in our example, which is higher that what he makes on his average winner. So you are just making money because you rely on zero margin and unlimited funds.
Or, what I had suggested was looking at a statistics which combines Average Winner and Average Duration for those winners. In our example, the guy would have a decent average winner, maybe +20pips, but if the duration is something like 45 hours, that means he usually waits much too long for such a small return compared to average daily range, i.e. he's waiting for losers to turn around.
None of these, and others which would help, are available on Zulutrade, so you have to go one by one and look at the trade history to filter, although in many cases a quick glance at the Performance/Drawdown curves is enough.
I hope that made sense. Again, I'm not criticizing any such providers, they may all be exceptional traders who just want to take advantage of the loopholes in Zulutrade. But I assume not all followers are happy to make 10 pips 30 times in a row only to have 1 running -400 pips trade open the whole time to wipe them out in the end.
Not all providers are FCC in disguise and it would be nice to identify them more easily.