Adam's info above may pertain to 4x5 or older cameras, but my brand new FCL810-A is designed around a low hole in the lensboard and is shipped with a board as such.
The lens board I got with the camera (clearly marked "SHEN HAO" on the back) has a lowered hole.
The axis tilt on the front standard of my Shen Hao 8x10 is lined up with a lowered hole. I have C3 and a C1 boards there is no issue mounting a C3 shutter in the board with the low riding hole. Pictures show a Copal 3 mounted on a SHEN HAO brand lensboard with a low riding hole. If the lens were mounted up higher on the board, the lensboard locking mechanism would interfere.