A Prescience'd FF with HACs isn't half bad at flyer duty: 8 S8 shots rerolling for those 6s. Should get more than 2 hits, on average. Part of the reason I recommended the swap: it's about as good against those tough AV 12 flyers, I think, with the fewer hits on average but higher S.
What sphinx of plascrete and adamantium bashed open their skulls and ate up their brains and imagination? Imperator! Imperator!