I usually go with the Efficiency Tweaks overclock on the Diffractor for the effect of taking out single targets quickly, but I understand Volitile Impact Reactor us a quick way to rid of oncoming swarms without risking 3 precious seconds to set up a Turret and shooting it for the Discharge.
I've considered your point into consideration. I found out with some testing that SD on the breachcutter pretty much functions as a balance of single target + quick area denial and works pretty well for me. Thanks!
