Vulnerability locators or exploiters for my build?

misanthrope

I know most people would say locators are better but I would like some advice from the STO community. Here's some details to help you guys decide which I should use: My base crit chance on my ship with my current gear (without locators or exploiters) is 39.1% and my crit severity is 168.4%. I'm a tac captain flying a pilot ship with pure directed energy beam build and my main damage skill is beam overload III. I've heard over 30% crit chance is plenty and you don't really need more so would using exploiters be better in my case since my crit chance is already so high or no?

protoneous

The more critical chance the better (up to 100%) so I still grab it whenever I can and use locaters (builds using surgical strikes may be different). The last tactical or universal console slot has the Lorca console in it.

On my main account with Fleet Spire Locators and Lorca console (as well as other consoles giving CrtH from this list) my critical chance is well over 50% on directed energy builds.