Exactly Petko :-),
If its clear that I am getting more and better EA’s for certain pairs and timeframes and it makes sense to play to that!
Glad to hear you feel similar about not being too pedantic about keeping things perfectly balanced in this way.
Likewise if a certain asset always seems to be performing poorly generally in backtests compared to others then its seems okay to leave it out of the portfolio rather than include it just the sake of maintaining the pair balance, provided there is not too much exposure to a single asset and also enough diversity in assets.
At the end of the day the goal is to include a wide range of uncorrelated strategies over several assets in order to increase my chances of a smoother equity curve with more controlled account drawdowns.