Having a tough time finding information about this. I realize that for a given magic user, certain schools are easier to cast for others. For me as a life user, elemental is easiest, followed by lunar, with holy being most difficult. My question is, say I have the 800 sorcery ranks to cap a holy spell. Will additional ranks help reduce my backlash chance? Or will holy spells always have a relatively high innate chance of backlash regardless of skill?