This is a 7-ply I've been playing with for the last week, it has jatoba outer plies, cypress and basswood intermediate plies, and a balsa core. The handle is prized black and white ebony. It ended up at about 8mm thick, and it's pretty decently heavy (definitely a beat stick). It's pretty quick with a very linear response, but I don't know how confident I am about jatoba being used in TT blades; further testing needs to be done.