I have installed the dual INSs as per instructions.
In the CS727 they function as expected except for one thing; they MISalign quite fast.

If I do not have a DME update set during departure they will reach status 3 within ~10 minutes flight and 6 the first half hour of flying.

Is that normal ?
Is there a setting for this in the CIVA config files ?

In the FSLabs Concorde that I fly with the triple CIVA INS they will reach status 5 after 2 hrs of flying without DME update.