CAT Ultimate Preamp Break-in?

I recently bought a CAT Ultimate preamp. I was interested in your experience on the break-in of this preamp or similar CAT models (Signature, etc).

Thanks in advance!
Expect about 200 hours of break in (Ultimate MK2)

Thanks for you response.

One thing I forgot to add in the original thread is: How does the sound change during break-in. What do you get at final break-in that is not as apparent from onset?
It was my experience that it took approx 200 hours for the bass to settle in, but in addition to this the transparency was greatly improved as well.