Hori FS-EX (mod?)

i saw the new hori fs-ex stick on the japan hori site and I’m interested in buying it. does anyone have experience modding the stick and buttons of this stick?
Does this have hori parts or sanwa/seimetsu?
Also, some people say wireless sticks have lag compared to wired ones, is that true for this stick?

Same as the Wireless Tekken 6; exact.

Same as any Hori Fighting Stick really; Wii, EX2, FS3, even Namco.

Hori parts.