Tascarella did one with Ivory and Ebony or Black Veneers. I don't remember if it was recuts or not.
The SW does have a seam, but you have to look really hard to see it. It's about as good as you can get.
Below is one of mine. I posted this one because there are double whites. The lighter the color, the harder it is to have an invisible seam. I still wouldn't call them seamless. There is a seam there and if you look hard enough, you will see it.
The only way you are going to have completely seamless is the way Dennis does his or by doing recuts. You may get them perfect most of the time, but every once in a while one will sneak up on you. Nothing in this world is perfect.