great to see you here!
Yes, you are right, Sarah's granddad ShCh Shandwick Amethyst and Conner's daddy Ch Shandwick Topaz are litter brothers, it's great isn't it?! :) Anyway, both Amethyst and Sarah has a little white on their chest as well as Conner :)
I saw few photos of your boy sometime earlier and I remember that I liked him very much. Now I am know the reason of it :)
You've lovely photos & funny videos uploaded, it was pleased to watching them all! :)
Keep in touch,