MP aluminum master cylinder help

I don't have a MP master cylinder, but I do have the adjustable brake push rod, and on that, I can comment. When I swapped over from drums to discs all around, I thought I could use the original brake rod so I didn't bother to change it. The car was difficult to push around in the garage and it turned out that the brakes weren't released completely 'cause the original brake rod was too short. The adjustable one is a genuine 'ting of beauty.