McKee Setup <5'6

The McKee chart only goes down to 5’6 and I was looking to use it for a 4’8 simmons. Anybody have experience with quad placement on micro boards? Recommendations?
Board dims:
4’8 X 20 Nose @ 12 X 23 X 21 Tail @ 12 X 2 3/4 thick
Fat lil slug of a board!