a few months ago, I noticed that the system I had deployed, was flawed in design. I thought I was taking a certain type of exposures, but wasn't really the case once I dug through the data.

the interesting thing is, that flaw, after I understood it, is what's driving a lot of my PnL this year, at a much better rate than what was the traditionally accepted way.

it's being able to handle this current environment, specifically because of that, which I perceived to be a flaw at the time.

I wouldn't have been able to find it, perhaps, had I just delayed the deployment to real live market.

deploy and iterate fast is the lesson I am getting reinforced these past few months.