Interaction with Crown of Eyes and Disintegrator/Battlemage

I've been looking into the unique weapon Disintegrator and unique helmet Crown of Eyes.

I was wondering if Disintegrator, with its weapon dps of around 560 pdps, and it's unique mod, Battlemage, which cited from wiki : "Battlemage allow the player character Gain Added Spell Damage equal to the Damage of Your Main Hand Weapon. " be paired with the helmet Crown of Eyes which "Increases and Reductions to Spell Damage also apply to Attacks at 150% of their value". In that case, this will be an easy 1400pdps (assuming).

However, as I was trying it out in POB fork, casually changing the weapon of a flickerstrike build with Disintegrator, then putting on Crown of Eyes, there are no changes to the damage at all.

My question is: Could this be because Crown of Eyes doesn't work with Battlemage, or because Crown of Eyes paired with Battlemage is not working in POB.

Will appreciate help from those who might have personally tried this or just knows about it.

you've jumped a mod OP what crown of eyes does is make the stat "increased spell damage" apply to attacks at 150% of its value.

Think of it like this, 20% increased spell damage effectively counts as 30% increased attack damage.

It has no impact at all on any other caster stats, 500 physical damage added to spells is not an increase to spell damage (despite it being that in the broadest sense)