brake question

[RichardJ]

>>10#'s of residual pressure on the front rotors will eat up pads and rotors in a hurry<<

Or, the rotors could just simply be worn out.

Check to see if the MC has the residual valves by inserting a toothpick or paper clip into the hole. It will be in about 1/4" inside and sits inside the back of the brass seat.
Pull the brass out, remove the valve and spring and reinstall the brass seat. Installing the brake line will fully seat the brass.
You should only remove the one for the disc brake line if you find one.