I haven't discount the PAs, I just haven't found a use for them although I am considering using one on the large HP on the Corvette. Because of the placement of that HP, I don't get to use it much so throwing a PA there wouldn't be a big impact if it doesn't work out in a battle.I didn't get on with them when I first tried them in my courier back in the day, but I came back to them in the last couple of weeks with a krait and oh baby.
Three large beams on top for my main gun, and two medium PAs. The krait's distro can handle that load happily. Running efficient beams means I'm often flying at sub-km ranges so hitting things isn't a problem. They're fantastic for trashing medium/large ships while the beams carve up anything that's too small to effectively hit with PAs.