I honestly believe if you follow Scott Carney's high probability trading setups (i.e trade respecting the pre-dominante, good RvR, etc), and apply a strong set of confirmation in both price and time not based in Fibonacci, with a solid trade management strategy you should be able to significantly decrease failure rate.
Anywho, I'll watch this trade and post if I see it confirming a reversal at the completion point.
Have you looked into applying different confirmation techniques in price and time? As a standard I always look for price divergence close to the D-Point. I'm currently trying to integrate MJP (balance points) and fractal dimensioning / Hurst to confirm the reversal.
What do you use to confirm harmonics besides the standard S/R lines and price action? A 50% success rate seems a bit on the low side, especially when I read about harmonic patterns being backtested to have success rates above 80%.
However, if you do find a strategy that has a win rate of 80% and a positive expectancy please share this, as I share my strategy with you. I do advise you to start paper trading those harmonic patterns that claim 80% win and see if you get the same results. Post some charts so the tradingview community can see.
Of course, I could be absolutely wrong about this trade. The wonderful part is that with a historical win rate of >50% and a RR > 1.7, it doesn't matter whether I am right or wrong. All that matters is that I enter trades that make sense to me.