Thanks 641Workmaster! (nice pics btw.) I figured they wouldn't be evenly spaced.
I had a thought that it might be due to the placement of the rear fenders or the spacing of the cross sills. However according to measurements I have, they don't coincide.
Anyhow, 34.5" from center to center would be evenly spaced with the same amount of clearance for size of pocket and space on ends.