I am also having issues with my brakes similar to the OP. Anyone recommend a place close to Wanneroo that has a vacuum pump to bleed the ABS?
Had this issue since doing my conversion nearly 3 years ago, and thinking it will be an airlock in the ABS as that was installed at same time.

Dunno if the ABS affects this, but on my bikes I leave the bleeders open and just pump fluid through into a clean container. That seems to get them to a point where I can start to actually bleed the air out after about 250mls have passed through. On a car it might take a whole lot more.