The 2 that you mention both use Raal Tweeters and Bogdan has put them on sale here on Agon for half price. He showed the Catalina at 12k and took offers on the Petra...Neither sold.
Bogdan Audio speakers
I am in the research stage for a future speaker purchase and recently became aware of a speaker builder and his company called Bogdan Audio. Wonder if there are any Bogdan owners out there that can share their experience. Also helpful to get any impressions from those who have heard them at past audio shows.