Thread:Cookie-san/@comment-26247760-20150908220735/@comment-26348726-20150915020105

Lol I just read that night recon has been confirmed to provide +5 yasen power if it activates, I think that's the first time I saw that. Not much, but it's something. The acc bonus is around 10% like we've always suspected.

Anyway, the yasen accuracy bonus applies to all guns of the 20.3cm family, which should include 20.3(2). This was the exact wording: 「※特に20.3cm砲及び同派生火砲の運用がポイントです. 」 So it should be quite safe to conclude that it is applicable to 20.3(2) as well. I'm not certain about the 20.3(2), but I know that it does apply to 20.3(3) at least.

On the other hand, it's much more uncertain for Prinz guns...they're pretty good on their own already anyway, but it's worth using a Prinz gun with a 20.3(3) or (2) if you don't believe that Prinz guns enable the accuracy bonus to apply.