I usually use my HARUGAMO captain, but my SHIMAKAZE captain is not that much different. I focus on the guns on the SHIMAKAZE as well, because, nobody expects a GunBote SHIMA!
This setup in BRAWLS or RANKED is insanely powerful. I typically RANK out of BRONZE with a 70% WinRate and Silver with 65% with this ship and setup.
You can overwhelm typical torpedo setup DDs in a gun fight.
American and European gun bote setups are the most difficult to deal with, but you can pump out enough DPM to make them have to decide to go all in or decide it is not worth it.
Either way, setup this way, this ship is powerful enough for you to be able to dictate the engagement in your favor most of the time because of the crazy stealth it has.