Need Help
I've never experienced this before, but I have heard of people getting some air in their master cylinder.
Did you guys make sure that the master was full at all times when you bled them?
I had the wife sit in my car, told her to mash the brake pedal down and I bled the furthest from the master 1st, then before she would let go of the brake pedal I would tighten up bleeder screw to avoid air from seeping in.
Took my about 30 to 45 minutes, didn't have any problesm after that.

