Mapped wing painite mining is an extremely optimised edge case which can beat pretty much anything, though. Frontier should be balancing professions around what a reasonably skilled player is going to get out of it, not around what you can fully optimise.
The better comparison is probably something like unmapped solo painite (or even painite+platinum) laser mining. Can still be very profitable with practice, but nowhere near as much.
I agree that surface (assisting core mining aside) and sub-surface mining are largely pointless, though: switching those to also give the gems types (at lower purity than cores, of course) would I think be helpful.
I agree, and personally I don't mine mapped rocks anymore. I think it's a bit too gimmicky.
Another alternative would be to make surface and subsurface deposits contain gems, when they occur on motherlode asteroids.
(and make the mining lasers also able to mine for gems on motherlode asteroids a tiny tiny bit.)
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