thanks for the tip
Like most tattooers, I think Horiyoshi tattoos who he wants, and doesn't tattoo anyone he doesn't want to tattoo. I also know that, as of Taku's last trip to Japan, Horiyoshi was still doing some color by hand, at his discretion. I've spent a good amount of time with him, and it's my opinion that when he decides to do his final tattoo, it'll be done partially by hand. I think it's part of his soul, and he'll never give it up totally.
again, just my opinions, what do I know?