if you got the balls and brain, make a third alternative. what's your excuse? no engineering chops? lost in the sea of elliptic curves? can't tell the difference between consistency, availability and partition resistance? consider doing some research if you feel powerless with two options you don't want.

if core slipped this one though publicly, how much do you think isn't public that got slipped in there. them boys at langley are quite good at strategic and tactical design.