Не так выразился, ранг са в мид\топ\веспер дает одинаковую прибавку в пвп.
skill_begin skill_name = [s_opt_acumen] skill_id = 3047 level = 1 operate_type = P magic_level = 64 self_effect = {} effect = {{p_magic_speed;{all};15;per}} multi_class = 0 skill_end
skill_begin skill_name = [s_opt_acumen_a] skill_id = 3047 level = 2 operate_type = P magic_level = 64 self_effect = {} effect = {{p_magic_speed;{all};15;per};{p_pvp_physical_attack_dmg_bonus;5;per};{p_pvp_magical_skill_dmg_bonus;5;per};{p_pvp_physical_skill_dmg_bonus;5;per}} multi_class = 0 skill_end
skill_begin skill_name = [s_opt_acumen_a2] skill_id = 3047 level = 3 operate_type = P magic_level = 70 self_effect = {} effect = {{p_magic_speed;{all};15;per};{p_pvp_physical_attack_dmg_bonus;5;per};{p_pvp_magical_skill_dmg_bonus;5;per};{p_pvp_physical_skill_dmg_bonus;5;per}} multi_class = 0 skill_end
5% бонуса от СА дается начиная с А грейда.