Right, ive recently bled my rear HS33 with water (bout 2 to 3 weeks ago) and my lever started to feel odd. The master cylinder was making a slight noise and it didnt feel at all smooth. So i popped the master cylinder out and lubed it up a little and rebled the brake with water. It then felt fine, but today (two rides later) its gone back to feeling how it was before. Common sense tells you that water isn't lubricating the master cylinder seal enough, which is why its going stiff. Has anyone else experienced this? Would adding antifreeze to the water cure the problem?? thanks, Andrew