That's the reason why one uses a system over the 3 selections that have a 50% SR so as to minimise the damage of a low performing system , just by default its SR should be approx 17%. (1/3rd of 50%)

One is assuming that all systems being used have been at least back tested to see if they have any potential.

Correspondingly,there is still nothing to stop a system that has been performing well to have a poor run. Do you drop it or allow it to run its course?

We never know when a system will perform well in the forthcoming month, some will profit massively well, where it may have performed poorly the month or two before , some will break even or small loss & some will have a run of outs after performing well the month before.

The combined overall result is what we try to focus on.
If one keeps chopping & changing every month , there will not be any consistency for the systems to do their thing.

If our SR is around the 24% mark , this means we are on track, the trick now is to make sure we do not double up on duel selections & get the best prices possible by not using the local TAB.

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Cheers.