Double natures = 525gp profit per ess (2 natures (640gp) - 1 ess (115gp)) Bloods = 385gp profit per ess (1 blood (500gp) - 1 ess (115gp)) I think these prices are close enough to determine that double natures will still be the most profitable rune to craft. Yes but consider this, not everyone with 77+ RuneCrafting will have 91 RuneCrafting to double-nature. thats not really a problem.... well, i dont have 91 rc, but i can still get double natures... how? we run them! i got no problem finding a double naturer... every day, any time... yea, even now! go to offical forms, search for "double" in the runes session, you should find some friendly 91+ crafter, trying to get some free exp from you...