They are the best by far, I was just thinking maybe I should move onto something else than the clues.
I'm somewhat tempted to get 200M Mining afterwards and see how much Corrupt ore I get so I could get a decent amount of Smithing XP with all that.
I have about 100k of the ore already and should probably get around 100k more from 200M.
If I were to use that all on DXP weekend or with BXP I should be able to get like 60m Smithing XP, which would take me to around 93m Smithing XP, though it'd take ages. Then I could just finish off that 120 pretty easily.