The drop rates are the same for every attempt, regardless how many refreshes you've done or how close you are to a threshold number. Or anything else for that matter.
It's the most "fair" approach, but we agree it can lead to long stretches of no drops which feels frustrating.
(Of course, it also leads to long stretches of getting the drops but we're human and quickly forget those times. ;) )
So, for the next major update (not the Player Level increase, but the one after), we're looking to find a way to make it feel better. Once we lock on the approach, @EA_Jesse, @CG_AaronNemoyten, or I can communicate it out.
Hope that helps!
