I have all the pieces talked about in this page, with almost every combination and I still die a lot in STF Elite runs... there really is no good combo... it's really random at times, some STF matches the Borg barely fire at me, and lately it seems as if my threat level is at max and they fire everything at me before I can evasive manuever the heck away, despite all my heal abilities
It's just teh Borg are too overpowered, even with the supposed nerfing in the latest patch