Board Thread:Wikia Discussion/@comment-25283969-20150511171714/@comment-25196231-20150524120859

@Tassana To make the success rate closer to 99% is 10 drums and 4 sparkled. Don't use 9 drums for exped 38 if you are aiming for 99% GS. Some people on wikiwiki suggest reaching 125% of the minimum requirement for the Drum expeditions will increase the GS rates. i.e. (exp37: 4 drums > 5 drums) (exp38: 8 drums > 10 drums) some say levels of the fleet too