I tested different strategies with different wealth-lab score. Some wealth-lab scores are high, even above 200. Some are lower than 20 while back testing performance measures are great however drawdown% is large. Most Wealth-Lab scores are around 30-50. I am wondering if strategies with low wealth-lab score is able to be implemented in real trading.Is there any suggestion for Wealth-Lab score usage? For example, if Wealth-Lab score is lower than 50, the strategy is not recommended to applied in real trading.Is there kind of saying like that? Thanks.

Nothing like that. The User Guide covers Wealth-Lab Score in detail. It's a "single metric that encompasses profitability, exposure (efficiency) and risk." If you have a bunch of systems that all have about the same return, then you may decide to pick the one with a higher WL Score as the better one to trade. Or, you can work backwards, using the WL Score as a filter to determine which systems deserve more attention.

Example:
Take 2 systems that have the same APR and Max Drawdown, but system A has 100% exposure and system B has a 25% exposure. By definition, system B will have a score 4 times greater than system A, but they may produce the same overall return. System B is 4x more efficient, so it gets a higher score.

Thanks, Cone. :)
Have a good weekend!