I know some others here don't agree with me but in my opinion it is impossible for a staking plan to make a losing method into a winning one. In the long run your POT will be exactly the same regardless of your staking plan - all staking plans do is increase your dollar profit by increasing your turnover. They are a bit like using leverage in the stock market - they can increase $ profits if you are successful but they will also make your losses worse if you are not!

Some staking plans (generally the Loss Chasing systems) will appear to turn a losing system into a winning one in the short term because they can "hide" the losses. Basically instead of losing a small amount each day at level stakes you win a small amount 95% of the time but that other 5% you lose a huge amount which wipes out all your profits (and then some).

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"Computers can do that????" - Homer Simpson