this probably doesn't apply to our vehicles, but I've found a few where it helped:
1) Bleed once, then go and use the ABS.
2) Bleed again. Sometimes a big bubble gets stuck somewhere in the abs system. on older Honda's and Acura's I'll usually open the high pressure port (use the right tool or you'll hurt yourself) and cycle the pump a few times.
3) it sometimes helps to tilt the car when bleeding
4) it also often helps to give the calipers a good tap to dislodge bubbles.