Been thinking about this but never done it

say you have a trendfollowing/breakout strategy with maybe 35-45% winning trades

when trending few big winning trades and when in range/consolidating many small losing trades

Then when i have say 2 or 3 loss trades in a row i could start adding to the position, to catch the big winner when trending again

if starting with 1 then add 1 for every new loss (to the max loss in a row in backtest?)

and when winning go back to 1

But as always

The market can stay irrational longer than you can stay solvent