FWIW...
I run a pair of C1 long-range pulse-laser turrets on my 'vettes.
I don't care about the damage they inflict. They're just there to "paint" my targets and they have the Emissive & Scramble-Spectrum XFX applied, to help me track cold ships and cause random failures.
I'm definitely not getting rid of the Emissive turret cos it's superb but I'm not sure the Scramble-Spectrum turret is worth keeping.
Currently in the process of testing out a long-range beam-turret with the Thermal Vent XFX applied instead.
The idea is that it'll be able to disperse the heat generated by the PAs I also have fitted to the ship.
Initial results are quite promising.
The beam-turret will start to heat up when a target pops chaff, causing the turret to fire wildly, but the chaff doesn't last long enough to cause the turret to overheat and stop firing and then, when the beam reconnects, it quickly reduces my entire ship's temperature, including any excess heat I might've generated with my PAs.
Obviously, the beam turret does drain slightly more power from the capacitor, compared with a pulse-turret, but it's not really significant on a Corvette.