Some claim it is a factor, some don’t, but no definitive proof.
I am limited in my ability to investigate but within the past year clan and I made the decision to avoid using black ice on Officials because we did see a difference.
When I discussed it on here a year ago there is a difference compared to T3 stone (can’t compare to DLC or BLB) in that there are 3 assets which is more than stone. I’m going off memory, when I get a moment I’ll link the discussion.
Here’s the link