GMDS you are correct - thank you - it's just one of the things I look at, not the only one! I was trying to point out to CONF iture that at rotation you can see exactly what input PF has applied if you are monitoring correctly; I still think it is a useful indication, whatever "top AB instructors" might say. It indicates:
Forward sidestick application at start of take-off roll, and reduction to zero by 100 kts.
Erroneous roll demand will be visible, both during take-off roll and at rotation.
Pitch demand at rotation.
TP