Rotation technique
From the first light aircraft I flew to heavy transport jets I was taught to rotate visually
At VR, check the airspeed then eyes go outside , judging the rotation rate by visual cues until you lift off then transitioning to an instrument scan with ADI as primary while checking airspeed and other instruments
In a low visibility take off that transition to instruments will be almost immediate of course
The only reason I mention this is I’ve been watching a few YouTube videos taken inside the cockpit, in almost every one the PF goes on instruments and stays on them the moment VR is called with the aircraft still firmly on the ground, not another look out the window until the autopilot is engaged
Thoughts and opinions