Quote Originally Posted by Unregistered View Post
On the other hand, if you stack up +character of X element stuff (which stacks additively with assault instead) instead of +element, elemental advantage retains the same relative impact.
Any character effect is multiplied by elemental effects. Character effects include the following: active and passive bonuses from certain eidolons, assault skill, attack up status effects, and assist skill passives. Meanwhile, elemental bonuses are more difficult to come by. To maximize the product, you optimally want the sum of all character bonuses and elemental bonues to be equal. With a full weapon grid of 8-10 SRs with assault skill, you'll have a minimum of 28% character bonus at LV1, 44% at LV5, and 64% at LV10. Character bonuses from primary and friend eidolons are only optimal at low assault skill (<20%) vs. weak element, and even then you'll probably want to pair one character-boosting eidolon with one element-boosting eidolon. Character bonuses from eidolons become undesirable at 80% assault skill or higher. Subtract 40% from that if you don't have the strong element bonus.