Your monitoring Pilot can be double checking your pitch attitude after VR but your eyes should be out of the cockpit until you are properly airborne when you can transition to the ADI and start a normal scan.
Even on a pitch black night with no visual horizon?
Define "properly airborne" please.
Surely it's a question of using
all the cues and information which is available?
For me one of the best tips an experienced training captain on the B737-800 gave me was don't exceed 10 degrees pitch up below 10 feet RA - I agree the key is rotation rate though - the vast majority I see are much too rapid!