Matches are over faster in Shield VS so they are my preferred choice right now. But does anybody notice a difference in drop rates for 70 vs 140 iso? IceX can you answer this?
They’re a flat 50/50 simple random roll in all tournaments.
Then I’ve been having awful luck today 
I may have stolen your luck temporarily. During lunch today I had a run of 6 or 7 140s in a row.