Interesting.......
Saw a similar thing on one of our shiny new 319's the other day, during the climb out their was a difference in the pitch display between the left and right F/Ds, of at least 3 degrees (reasonably significant at FL360). I have been told that if the other A/P was engaged it would have chased the demand in the pitch of it associated F/D, which might not have been that comfy for the punters.
Is this because each FMGC is working out its own target climb speed, or is the airbus just strange???