User blog comment:Friguceler/Digging around for Fit Guns system and stuff/@comment-26948048-20160305184354/@comment-26948048-20160305195717

I found these two spreadsheets: 1 | 2

There is a very interesting gap of accuracy between using two 20.3cm (No.3) and two 15.2cm Kai, amounting to ~12% extra accuracy when using the latter loadout, which could be attributed to 8% (4*2) + 4% (the presumed fit bonus).