It's best to use some correlation indicator for that. This isn't a feature I would consider adding to the Position Sizer.Enivid I would like to make another suggestion to add to the Position Sizer.
Add a feature that will tell me the correlations between the trading instrument that I am currently looking at on my chart vs the trading instruments in which I have open positions (and the correlation between all the open positions). I am sure this will be very useful.
At the very least the correlation between the instrument currently open on my chart vs the trading instruments in which I have open positions.