I mean, you could use a spreadsheet to calculate the average weight, swingweight, and balance.
And the original question is about whether lighter or heavier rackets are preferable for the backhand. What people believe they use relative to themselves is valuable since a player might take on as much weight as they could handle but came short of your line. It's still them using a heavier racket and preferring one to a lighter racket. Or a player might just universally think heavier is better if they can handle it, even though the heaviest they can handle is below your arbitrary value.
When you're looking for a general trend of "is heavier better", then the specific value doesn't matter. Just would you, out of rackets you can use, prefer heavier or lighter. The definition of "heavy" is subjective. But heavier vs lighter isn't. That's a very objective binary question which satisfies everything you want to know without throwing in an arbitrary value that can skew the results.
But that's it - a spreadsheet that factors weight, swingweight, balance and likely personal information on the player as well - is not the sort of task I envisioned at the onset.
Admittedly it was my own arbitrary point of choosing - 320 unstrung. It wasn't completely without thought though, when the most popular frames nowadays seem to be in the 300-315 tier, 320 seemed like a reasonable demarcation.
I'm not sure if I'm right or wrong in thinking this way, perhaps I've superimposed my own criteria of the difference in equipment today.
The exercise was to broadly establish (principally for my own benefit) whether 1H'ers appear to be a bit more limited in their racket choices, in this regard I'm not alone in the problem. I am especially happy to learn some others here are using sub 320 racquets though, it's a threshold I don't want to feel hampered by.
All this is directed to what direction(s) I need to go with my tennising - notably in this thread, the choice of equipment that best complements the technical/mental journey I'm on.
It's true, your approach would be more exhaustive and probably be warranted as I reach higher levels - at my relative 4'ish phase, I'm still trying to learn some very basic things. To date I haven't really thought much about why I'm using whatever I do, this would be the first time.