Iv been experimenting a bit, and disabling the RCWS on the pmdg menu in fsx fixes the aileron stutter, but the elevator stutter is still there, unless of course i disable the LSAS. Btw what is the RCWS responsible for? Ill be experimenting with the FSUIPC to try and sort this out. It seems that this "stutter" only happens near the centre of the controls.