Well, the thing with adjust SB and RoH modifiers is you have to consider synced content and the game at 50 still exist. The entire reason why SB and RoH's modifiers are slightly lower is because PLDs had no choice but to spam it even while DPSing. So, you do have to consider that buffing it even higher than x3.5 x5.5 might be detrimental in some ways. I think x3.5 x5.5 is already something you have to test.