The hardest thing to do in creating systems , is to try & formulate a profitable plan that has very few rules.

The fewer the rules , the greater the chance it has of repeating its success into the future.

Having large runs of outs is part & parcel of most selection plans.

The theoretical longest run of outs to expect with a 25%SR at some stage, is 25 outs in a row.
So make sure the bank can handle 3.5 times that if betting level stakes.

Restricting the price range is possible one of the better filters one can use to increase profits.

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Cheers.