Well I have seen some pics of the parents, but I cant tell if its legit that those are really the parents. I have also been thinking that they dont look 100% pure BD to me, but if those that I got shown were the parents then they should be BD's.
But yeah, its hard to tell. Anyway nice rays and I dont really care if they are pure or not, as long as they look awesome
Also, the color on those images are a bit weird. In reality the spots are more white-ish and they look like BD's. Got a video from them and on the video they look more like BD's than on those pics Since the father is an eclipse BD I am very sure that those spots will mostly open up, if you look very close you can already see that in the middle of the big spots theres a little black-ish, so those will most likely be rings and not big spots.
Bottom line is that if you like it get it. But I personally would not be convinced they are pure BD without seeing parents. If you say you have seen the father then at least you know how they are likely to turn out mate