hi
it look like they have change and that there is no need anymore to change the washer or modify the shoulder.
I bought one for my dad car last september his mechanic fitted it last week and didn't see any difference between them.
before the abs light was blinking right after she was fixed and a hose blow as he told me now fluid brake is everywhere.
I'll have a look to the car with the computer when i got a bit of time to see what default are stored in but i guess the problem comes from the pressure switch