No idea but here's one way to check.
Print out a 6 knob drill pattern. Put a dot on the middle of each hole
Lay the pcb on top, centering lug 2 on the dot. Does it line up?
If so, place a footswitch board on the paper, centered on the footswitch. Move the pcb down to accomodate pot height. You can ever place apot in the pcb.
This will give you an idea how much wiggle room you have vertically (I like to move the drill pattern down a couple mm if there's room).
Hope this helps.