I have a pile of seiryu stone I've had for years from the Co-op. I got it way back when they were selling boxes of the stuff online and it was one of my first purchases of hardscape materials. I know I don't nearly have enough, but this video alone has given me a bit of inspiration to try new things.
I wanted to share, because, seeing this method and this person, Filipe Oliveira doing his thing. It's something where I will not attempt to put words, but just share and hope you enjoy it and find the time to do so.
It's well worth the time and I don't think you'll look at seiryu stone the same way...