Just to put this in a context, I surveyed 500 horses out of AHR volume 72 (the last printed stud book) and found the *Hadba family represents nearly 1% of the breed (actually ranks ahead of *Reshan in the breed at large).
We are very much attached to the *Hadba line through Rollicka in our CMK program and actually have a yearling bay filly double bred in this line whom we consider to be quite a hopeful prospect. She is a Stud Book V (last imported ancestor 1932) combined source CMK.