Thanks for the compliment on the fish...I'm certainly proud.
I've seen a handful of HBG come out of my pond with split tails. So, it's normal in my hole even though it's not regular. I would venture to say that 2% have a split rear tail. It seems to be passed on as some of the culled juveniles show the trait also.
I'd say the the HSB has a fairly level tone with a bump in the low mid-range and a slight dip in the low treble. That's too funny!
Now, I have to go back and compare photos, thanks for the time killer!