User blog comment:Shinhwalee/Major Event Preparation Guide for Admirals (OUTDATED)/@comment-180.191.73.61-20150420150309/@comment-26091970-20150421222918

If your HQ level isn't very high (as in, not capable of doing Hard Mode), then lacking the night battle equipment isn't the end of the world. The main reason high-level players make such a HUGE fuss about it is because the event's Hard Mode late-game boss fleets tend to be so tanky that small night bonuses like the Star Shell and Night Scout can make or break your night battle against the boss and ultimately decide if you finish the map.

If you really want Sendai's night equipment, but aren't willing to get to World 4-3, then stick to Sendai as flagship in 3-2-A level grinding.