Shock spikes from aftermath is awful, never stuns and only does like 15dmg. The 2.5 does not proc on ws, but procs a ton during tp phase. And the def down rocks. Geirskogul is never worth using over stardiver outside and not even close to drakes inside abyssea. Amazing weapon though, nothing touches it except mythic. 159dmg at 99 is just insane. Not to mention the 40 acc opens up some pretty great str/att builds for ws. So definitely stick with it.