[@Crusader Lord] You know that A- attacks are naturally weaker than your otherwise regular B ranked attacks, right? Since all the minus modifiers we know of are applied constantly and removed under specific conditions (the contrary of how +'s work) this is actually quite the self-imposed debuff you have. The only advantage of having A- over B is being able to pierce Defensive NPs like Armor of Fafnir and God Hand, but even so, your attack do barely more damage than a C Rank strike.