Hey thanks Byron! I think I can use this!

I will try to calculate where the MAC is on mine since I think the
fuselage is a little longer on the S-1S than my S-1C

Wally
"Byron J. Covey"
From the "Pitts S-1S Airplane Flight Manual"

Datum is 65.06 inches forward of the lower wing leading edge.

Most forward limit:
FS 64.00 (17.9% MAC) at 1115 lbs or less.

Most forward at max gross weight:
FS 65.00 (20.8% MAC) at 1150 lbs.

Most rearward at gross weight:
FS 66.00 (23.7% MAC) at 1150 lbs.

Most rearward limit:
FS 67.00 (26.6% MAC) at 970 lbs.