So we are forced to farm for treasure keys and they are dropping at an incredibly low rate but I sure have a boat load of special ammo synths. Now the darn things are clogging up my vault and my characters to the point where I got a key and didn't even notice because it went to the postmaster since my Guardian was full. I should not have to be constantly using a special synth during game play just to reduce the number in my inventory. I should be able to delete these buggers and move on.
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Or make them stack like material.