Don't take this the wrong way, but how did you bleed it?

I use to have someone pump and hold the brakes while I opened the valve.

Now I can bleed them by myself with better results. I connect a hose to the bleeder screw, put it in a cup of clean brake fluid, open the valve and slowly pump the brakes 5 or 6 times. Make sure you keep the reservoir topped off. Start at the brake furthest from the master cylinder (rear passenger side), the go rear driver side, front passenger side, and then front driver side. Close the bleeder valve/screw with the hose still attached.

If I only did the front brakes I can usually get away with just bleeding the front brakes.