You can do the same with HQ rosegold when it comes to Parry as you can Gryphon skin so we are both mistaken on that aspect.
With Rosegold you don't need to worry about the vitality materia and can slot in skill speed which I forgot is better than Determination for a WAR tank since it means getting Inner beast up more quickly.
From what I have read, Rosegold is ever so slightly better, but at the cost of having to spend more than Gryphon skin.
There wasa n entire reddit discusson and topic about it which I believe Gamemako? covered.

I'd honestly need to check


Tag; Gamemako.