Huge BTCUSD gains by trading MACD Divergences

I've been playing around with the AutoDivergence Strategy on the 1H BTCUSD chart (Bitfinex) and tried some "unconventional" settings
As with a lot of other Crypto-Pairs, trading only longs seems to perform much better than going long AND short.
I configured AutoDivergence to use the MACD-histogram as an oscillator to find Divergences. I started to increase the oscillator length and the results kept getting better - "25" seems to be a perfect length.
By reducing the number of candles that need to diverge to 4, I got more signals while still maintaining a high profitability.