I have been in and out of the shrimp hobby for a while, but I will say that I have ordered from blue crown on many occasions and they have excellent stock. Their shrimp have all been quality for me and they tend to be quite accommodating. I wouldn't hesitate to order from them.
I have always been intrigued by the genetics bicolor shrimp. For instance, if you breed that shrimp back to TB, will that impart those abnormal coloration genes to the offspring? That could be interesting!