User blog comment:Hayashi H/Advanced Equipment Guide/@comment-24930367-20151028172016/@comment-26486243-20151028175443

Thank you for spotting that. Swapping the sec gun to main in the next edit, though will need to recalc to get the solution for 300 FP.

I'm not sure what you mean by 2x main + secondary + 2x WG42 though, since that would be 5 slots. Assuming you mean 2x main + 2x WG42, the good thing about using this kind of setup is that it can DA non-installations while doing a Wurf hit on the installation, but the problem with it is that the Wurf hit won't be at 300 - so it's unlikely to straight-out kill the installation like a yuudachi Wurf could. Unfortunately, Wurfs force a single attack, so it's not possible to double-wurf hit it, if that was your idea.

The main idea of the Wurf section in the first place is really to allow a DD forced by branch rules to be in an anti-installation fight to not be useless, since CAs with T3 Shells would always be better if we could bring them. As for quad-wurfing an Ooyodo/Yuubari/Katori, it would hit the installation at >300, but as CLs have higher resource usage than DDs and lower evasion, there still really isn't much of a reason to use it over a triple wurf Yuudachi/Ayanami.