if you don't make an extra $650 from using it I would be shocked.

Well, there is that.
FWIW, I pay $320/yr for a subscription to "CEFs: Income + Opportunity focuses on the high-yielding Closed-End fund space" It has paid for itself many times over. Fixed(-ish) income allocation. I have thought about cancelling it since the stock screen have been doing so much better. But ... diversification.
seekingalpha.com - Cefs income opportunity

I am building portfolios of a mix of strategies with mdd of -19% and cagr of 36%

Well, I don't believe anything 20% or more. Especially with only -19% MaxDD. Notwithstanding that a couple of my screens have gotten 36% & 63% & 52% CAGR in the last few years. Even after getting crushed these last few months.
It's fun being in a bull market.

I remember the dot-com boom and bust. Lots of people quit their jobs because they thought the had found the Golden Fleece. Then the rains came.

So anyway, I don't know about you, but I watch 6-8 high CAGR screens and the eye opener is the very high overlap. The same few stocks show up in almost all the screens. So I'm thinking that it's not actually 6-8 screens, it's more like 6-8 different ways of measuring generally the same criteria.

You just don't get huge returns if you don't have stocks like SNDK & MU. Also AXTI, NUAI, and ERAS -- in the Russell 2000.

What does one do with a screen that picks completely different stocks as a 30% screen but only shows 15%? It still beats the S&P500 by 5 points, but it sure would be tempting to drop it.

Or as somebody said, "Put all your eggs in one basket and watch the basket."