I've done countless testing across both the 900 and 1000, at light and now MTOW A350 out of LAX.
TOW 320.8 tonnes, KLAX LAX 101853Z 25008KT 8SM FEW010 FEW014 23/17 A2999 RMK AO2 SLP152 T02280167 $
The inibuilds A350 gets airborne around 2-3 degrees at rotation and by the time 8degree's rolls around I am a good amount airborne.
If you check countless a350 videos on youtube you'll find that airborne point is around 8 degrees, which would be typical for a commerical jet.
I worry there is something big going on here that may not be addressed but I am 100% confident it is incorrect behaiviour.