I have both. My V synergy is pretty good too.
I managed to beat it with a party of four (Auron ate it right at the start), it's just frustrating because there's no challenge to this crap; the "challenge" is hoping the stars align and you can setup six forms of mitigation so the damage output is realistic, then the fight is pretty simple. I don't feel proud or accomplished for finishing a fight like that, because it was simply waiting and retrying until the right characters did not start with an empty meter AND hope that Bartz didn't kick three times in a row (which he somehow gets to do before my characters can barely eek out one action).
I kind of thought we were past that nonsense with the introduction of Cid Mission, hopefully it was an anomaly.