I don't subscription to that strategy, assuming you were trading on an exchange that doesn't charge trading/withdraw fees than you would had have some advantage that's if you decide to neglect the few bucks you get charged for miners and service fees (used for sending the fiat to the platform where you'll buy the bitcoin).

The best strategy is just to buy, wait and sell when you see profit, in cases where you selling will be at lost, you just switch to hodling your coins and wait for greeners day ahead.