but how do we do now when the old fork is just about useless?
it's simple, we just meassure the old distance between the medianline and the lower paralell and project that from the brakeout,
we will only see the brake out if we move the gap down to where it should have been if there wouldn't be any gap,
but it is not neccesary, just draw another paralell as shown. may it run to the moon!