Help me theorycraft a Phasebreaker + Hyrian's Bulwark build

[Boze]

Great idea to use horn of korvaak. I forgot to mention it on my previous post.

I also forgot to mention that build

[1.1.6.2] Elemental Purifier Featuring Fantastic Phasebreaker | CR ~6:00 | SR65+

Hi. I really want to make an aether pistol gunner with solid SR65+ results. This is not that build. But, while looking at aether % bonus pistols it did remind me that Mythical Arcanum Sigillis was a thing. And poor @Crittrain had spent a week+ of time and much of his sanity trying to find a build for Phasebreaker in GD discord, so pass through elemental seemed like a solid fit despite the limited skill bonuses. Didn’t see a forum build with the pistol yet so here we are. Pass through firestrike…

As i dont have as much experience as you guys on the game : the two builds should have same “performance” right ?
I might try to build something around phasebreaker + M. arcanum sigilis + horn of korvaak on a purifier and devo from Nery. But it is said that the build i linked have hard time performance in SR. What do you think about it ?