CGs with no black on P5

[hieraaetus]

Hi Guys,

How frequent is the primary pattern with no black on P5 among adult CGs?
One of these birds actually has an interesting pattern on P9-10 as well (almost double white tip), besides not having any marks on P5. It is also a bit slow in its moult.

Sorry for the quality of the pictures.

Thanks in advance.

Regards,

Gabor