No. of Recommendations: 5
This is, obviously, a little bit of tedium - but it's better than
randomly selecting from our VL screen universe, which is littered with
the debris of over-mined, time-specific ideas that have not held up out of sample.

I'd conclude the exact opposite from "better".
If you cherry pick the things to put into your so-called index you learn nothing,
it's just another tuned blend. If everything goes in, we learn whether
or not the collection of VL long screens as a whole have added value post discovery.
We might also learn things about when VL long screens are doing well and when they aren't.

Perhaps we're scared of doing that because we already know the answer.
When DrBob posted about the SIpro "index", no one suggested it was
invalid or inappropriate because it included all of the screens.
That's because the numbers looked good.

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