I wound up breaking the switch off and replacing it with an OEM piece. In the end after replacing the master, booster, and bleeding the lines three times I was still unable to get a hard pedal. It is in the local shop as we speak. Hoping wiser minds can figure it out. I will post upon diagnosis..
Hello from US. I am having the same issue. Were you ever able to figure this out? For the life of me I can’t seem to get this to budge and do not want to break it.