Geomancy Potency

[Mnejing]

Could we get a list of how having 900 combined skill (Geomancy + Handbell) effects harder to test geomancy spells such as indi-poison, indi-slow, indi-paralyze, indi-gravity, indi-wilt, indi-frality, indi-slip, indi-torpor, indi-vex, and indi-langour?

Thanks in advance. :)