So I've been playing around with THM a good bit recently and have been having quite a good bit of fun. Been surfing the forums and such for optimal gear choices and its looking like the crowd favorite is a Lightning Brand with INT materia, correct? (At least for lightning damage and the upcoming Burst skill which sounds outrageously overpowered)

Unfortunately the Immortal Flames doesn't have any shield that is anywhere near as good as the Gridania Square Shield BUT I did notice a curious lv40 weapon "Ul'dahn Brand" which has Attack Magic Potency +25, Lightning Magic Potency +15. +5 in each category over the regular lv41 Lightning Brand. Could any experienced THMs aye or nay as to whether that +5/+5 potency would be in any way superior to a regular Lightning Brand with +15~20 INT attached?