Answer: Yes. I split the brass fitting. Me, reaching through full arm, crouching, with a stubby 14mm wrench, cranking the flare nut against like a 3/16th bolt through fiberglass.
I must've put about 4 ft-lbs torque on this thing.
So I guess this sucker would've burst the first time I took the car around the block and tried to bed the pads.
Anyone else ever seen anything like this?