Looks like a solid build but you should definitely do one PA short range and the other efficient for more DPS. Two efficient just don't do enough damage for me.
I'm glad to hear you're sticking with fixed though. You'll never get better if you don't start practicing with it and there are some top level PvP pilots that use fixed on controller on FA off, so it definitely can be done.
Thanks for the support man. It was your reply that made me stick with fixed. I'm already doing much better and this Vulture is pretty strong. I'm popping some ships in just 4-5 volleys. I'm having difficulties still with the smaller faster ships however. I'm definitely learning that bigger ships or ships with larger attack surface are much easier to pop.