Alright. I just bled the system again. This time, I used a Mighty Vac. I started on the left caliper. Pumped the Vac to 10 PSI, then opened the nipple... no air... just solid fluid.
Switched over to the right front caliper. Place the tube on the nipple; pumped the Vac, then I see air/fluid coming out even though the nipple is tightly shut. Ok, so air is entering the system. Tighten the brake line bolt onto the caliper, but it's already way tight. Pump the Vac again, and even though the nipple is as tight as I dare to make it.... air and fluid still escape with only 10 PSI pressure. I guess I just need to replace the nipple? Or can I remove it, wrap some teflon tape around the threads, then re-install?