Board Thread:Game Discussion/@comment-67.204.53.200-20130803060427/@comment-11490363-20130803124710

Were all of these nabs before the first update? I got 3 before the update, and then 0 after. Before I had maybe 30 attempts, and after I had 40+ more attempts. They odds went from around 10% to less than 1%.

The event notes clearly state that higher levels have a higher net chance than lower ones. You might be comparing pre update H5 to post update H10. Apples and Oranges.