E30 Zone

Is there a nack to bleeding these?
Using an easibleed that ive used endless times without an issue.
No traces of air coming out of the nipples,just nice clean fluid.
Done them 3 times now with no further improvement.
Pedal is very low when you first press but perfect thereafter.
Any ideas?
Using a MK2 Golf servo and standard E30 M/C.

No special bleeding technique needed, unless you somehow get air right into the workings of the ABS unit, rather than just bleeding it straight through.
The 'official' way of bleeding the system in this event involves connecting up a special BMW module to the ABS unit, which opens and shuts the solenoid valves.
The alternative way is to drive the car and 'activate' the ABS system several times between bleeding attempts.
Problem's not the pads being knocked off to far by a knackered wheel bearing, warped disc or sticking caliper, is it?

Brakes were fine when it came here for an M50 a couple of weeks ago so im assuming the discs/pads/calipers/bearing are ok.
Ill give them another bleed tomorrow night and take it down the road.