I'm not sure about using B with the HLC. How often does an HLC fail to get damage through, even without a modifier? Especially if you're hunting turreted ships like you mention, that will often have 0/1 evade dice, a C-3P0 that they won't trigger against 1 hit knowing you'll get the second shot, etc.
You are not obliged to take the first shot with the HLC. You even could get Accuracy Corrector to guarantee a miss on the first shot.
Why would you use Accuracy Corrector to guarentee a miss? Just to trigger the HLC? Why not just fire the HLC the first time?