Don't trade in Quest crystals!
Just a warning for all, it's another swing and miss by kabam. I got 2 3000 ISO in the large trade crystal. If I had opened all 100 small ones and got just 75 ISO each, the smallest of them, I would have been better off. I hope others have better luck, but I would just open them individually. Plus you get more (albeit small) weekly summoner points. I know its not a huge deal, but its like Kabam saying "I will give you this shiny new nickel for one of your old quarters"!