I recently bought a set of Hope M4 to run in the front. I noticed that the dual pistons on the right side sticked out a lot. I pushed the pistons back and tried to center the caliper so all four pistons would travel the same distance to grab the rotor, but failed. The pistons on the right side still sticked out as before.
A little side note: By left side I mean the pistons closest to the disk mount, and right side I mean the pistons closest to the spokes. And it was bled also.
Very hard to get my camera to focus in on the caliper...
Are they suppose to behave like that?