Hi, I'm getting so many problems with my Magura. I run front and rear, Both bled with water but its always my rear one what f**ks up. Nothing on the brake leeks its all good but what keeps happening is, The slave cylinder on one side returns really slowly and makes the brake drag really bad. I have tried to resolve this problem so many times bought a whole new brake and even bought just slaves on their own but, Nothing helps its after a few weeks it just starts doing it again all my other riding friends don't get it but i do. Can anyone help please would be appreciated loads. cheers Aaron.