we are trying to summarise the essence of what we do through a study of our own trading performance through industry metrics such as volatility, risk of ruin, average win/loss ratio, Sharpe and Sortino ratio, skewness and returns distribution, etc.
I can see the benefits, maybe even the necessity, of such systems for professionals and fund managers, but for me, as a retail trader, just trading for my own pleasure, these statistics would mean nearly nothing at all.
I watch my win/loss ratios, both in number of trades and in pip values, in a kind of "real time" because these mirror the stability of my strategy and my trading as well as possibly highlighting changes in the way the market is moving. These are just simple formulas in my Excel journal. But averaging these types of data over a period of even a year would be meaningless to me. As a retail trader, I trade when it suits and I select my position size according to my overall assessment of the chart - these are things I cannot build into such a system at all because they depend entirely on the "live" circumstances at the time, both personally and in the markets.
But I know these things have value for those trading professionally and who need to report to their bosses and to provide comparability with other traders/enterprises, as well as those looking to sell their trading skills to others.
Another dimension is one's reasons for trading. Obviously, profitability is the end result, but it is not the only motivation. Personally, I am not so interested in trying to improve my overall performance by a percentage point or two. For me, the challenge, the inspiration, and the passion in trading has always been in the intellectual dual between me and the market. I am just as happy with a 10 pip "victory" as I am with a 900 pip trade. Yesterday on the SP500 was a classic example of that. I saw that an early long was not going to perform and closed it in time, then I read the drop successively to last week's close, the 1H 200 SMA and last week's low - but I only made half of what I should have made. But I was entirely happy.
My point here is that applying a system like Optuma, and inevitably having to subsequently live with the results, I would be stifling my own creativity and flexibility and turning my trading into a money machine. My time frame is the present and the near future, the past is the past.
But that is just my personal profile and I only put it here to emphasise that each individual is different and has different aims and methods and needs. We each need to know what these are in order to know what systems we might need and what they might help us to achieve in line with our individual goals.