Relevance of entering same level and not altering it is crucial to this method, perhaps could even be applied to any method. To me, it's common sense NOT to alter the entry level, if the signal is still pointing to a weakness in the market, shorting same major support level warrants that eventually that level will be broken and price will not return to that level until the time initial bearish signal starts showing signs of a potential reversal. And then, I am going to borrow B1S2's profit taking methodology here, adjusting a trailing stop to the next reaction high.
IMO traders that end up quiting due to consecutive losses and frustration, one of the fundamental mistakes they commit is altering their entries, especially if these changes are within the intraday 'noise'. Finding a major level of S/R and observing current price action together with a bit of TA AND entering same major level upon break while keeping tight stops is one of THE best ways to go about it. It is simple, rewarding and frees up a hell of a lot of time.