Not really. The key is the PPO 3/10 settings, which increase the swings from Bull to Bear and cause more trades. More swings with decent statistics on both sides adds up to better returns.
I think I recall you saying it was the WalMart approach to investing.
You can wring some more out of it by optimizing it, but I think it is already curve fitted to some degree.
However, it is still very decent when backed down to rounder numbers for the variables.
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