>>542383129
>Might have gotten me what, 5 or 6 SR's, on average? Not worth.
Oh but ten pulling for 2 SRs on average using the equivalent value of currency was completely worth it.

>>534015435
I don't know the odds of a 3* trainee in an all uma banner, I do know the odds of getting Curren which are 0.75% and thus those odds.

You are extremely likely to get duplicates on a specific banner.
The point of the all uma banner is that if you do get her before 200, you can keep going and hand select anyone else rather than be forced to spark her for a bunch of stars.