little preload on master cylinder with hydroboost?

Hello guys,
today i have changed the master cylinder on my 2003 GT and i noticed
that i have little preload on the master cylinder. About 0.04-0.05
So i checked this on my old (stock) mc and there is the same preload.
Is that correct with hydroboost brakes?
thank you
Markus

Hello guys,
i have looked on a 2000 mustang gt.
The preload is normal.
thank you for reading.
Markus