Problems Mintex M1155 pads

[Dino86]

Checked the bleeding again... no air came out. Pedal is hard when cold.
Re-burnished the pad again. seems a little better but still it fades early.
Looks like pad is overheating... BUT M1155 should work until 600deg or something.
After 3x braking from 100 to 50kph, impossible to reach 600deg....

So I assumed the discs...
I re-installed the M1144 and they performed normal as before... no fading, hard pedal etc... (unfortunatly not much material is left on them, so I need the M1155 to work)

Is it OK to use discs that were used with M1144 on M1155?
I know that AP pads for example don't work on discs used with Raybestos pads. But would be surpised it's also the case for 1144 and 1155.....

How do you run in the 1155 pads? I made 3-4x smooth raking from 50 than 8-9 times hard brake from 110-120kph until 40kph (with some cooling in between)