Talk:Spring 2015 Event/@comment-26300537-20150416003153/@comment-25730832-20150417064635

Didn't really want to jump into this but I'll give some info regarding Expeditions (especially the drum stuffs).

http://kancolle.wikia.com/wiki/User_blog:Kitahara/Just_recording_drum_expedition_success_rates

[Assume this is the case with 0 sparkle ships]

We've been collecting data regarding Great Success on drum experiments for months. So first off I need to go against Sae's comment about it being 50% chance. If you only use minimum number of drums it WILL NOT be 50%; it's been tested with more than 300 data points. However, from my records of running them with higher amount of drums it's showing a success chance of 50%, which is agreeing with what Sae said.

TL:DR; Just remember that the minimum # of drum thing won't give you 50% Great Success Chance.

And yes, you can send ship that are chuuha'd out.