User blog comment:Kitahara/Recording drum expedition success rates/@comment-25730832-20150223094147

Updated on my Drum report during Winter Event: Drum Report

Executive Summary:

For Expedition 21 with 3 drums, 0 sparkles and 5 ships yields ~15% over the course of 60 runs. Increasing to 1 sparkle yields ~25% over the course of 35 runs.

For Expedition 37 with 4 drums, 0 sparkles and 6 ships yields ~10% over the course of 49 runs. Increasing to 1 sparkle yields ~20% over the course of 30 runs.

Expedition 38 cannot be run due to drum avialable constraint.

Discussion:

Overall, it seems to increase the percentage by 10% per sparkle ship. This support Kitahara's report for the 2nd week although my sample size yields a lower great success rate.