today when i did get 60 with the sam i did notice something strange, my friend rdm 60 and i have run a few test and did found something we can't explain.

midare setsugekka have a 720 potency while Fleche that have a 420 potency deal about almost the same damage.
we did run a few other test with jobs with similar equipement (smn, monk and paladin) for check if something was not right and it seems that the potency of caster =/= potency of melee.

midare setsugekka without buff at 720 potency deal (in full i270) around 6100-6300 (without critical or direct hit), his fleche was hitting (he have too a full i270) around 5800-6100 while being a skill at 420 of potency.

do i miss something here or do we have a few trouble?