Technically, it's the "nuts" that are countersunk. The screws are accessed from the underside of the top panel and are regular, every day phillips screws.Countersunk screws.
Sounds and looks like they are really thinkin and listenin about how to make a good stick.
Can't wait to see how and how much they turn out to be.
I just noticed that the stick was used in the TN vs. Dengeki vids.Adding pics of the arcade stick given to the Dead or Alive 5 director Yohei Shimbori:
Casework done by nitewalker
Artwork done by extra0411
Crystal Clear JLF balltop by butteroj
Custom Dust Washer from art at tek-innovations
Multi-console mod by strogg
assembly by myself. Sanwa buttons and stick.
Pics from his tweets on @TeamNINJAStudio