Story time: Mainly just out of spite, I did actually run my Clipper at one point with two large rails on separate triggers and just alternated aiming back and forth between them. It was during that exercise that it really sunk in how ridiculous it is to have weapons mounted on a vehicle that don't even converge within their maximum effective range. That's like putting a scope on a rifle angled up so far that it can never actually match the point of impact. Sure you can just always take it upon yourself to aim 6 ft high, but *the setup* itself makes no sense. Ah, its one of those "balanced" rifles I guess, one that would be too op if it actually functioned properly.
In seriousness though, I'll admit it was mildly amusing at first to try to master having multiple aimpoints while running that loadout, but ultimately it got very tedious and annoying pretty quickly. I totally respect that military ships ought to have combat advantages, but realising an intended balancing disadvantage in this form of irrational gun placement is pretty silly to me. Why not just disallow certain weapon types for certain ships? Maybe have "military grade hardpoints" like we have extra module slots already? That would completely make sense as a method for balancing things, but "let's make it so your guns don't shoot where you'd obviously want them to" is a pretty weird and round about way to do it, no?
Besides, as I pointed out before, even with a convergence setting for fixed, military ships would still win out due to more flexible engagement ranges. Basically if your guns are already centered, you can hit anything from 50m out to 3km with just the built in micro-gimbal action, whereas a Clipper with convergence set to 1km would likely only have 100m or so on either end of that range to land the shot. The only difference is that your guns would actually function like would reasonably be expected instead of just pointing off into infinity.
P.S. If we had gimballed PAs and rails I'd prolly be using them, but I'm pretty sure those haven't happened mainly for more understandable balancing reasons.