Very small changes of attitude are the secret hamil, from a well set up stable approach at 1000ft.
It's only a small "check" (slight pull back on control column) of 1 to 2 degrees pitch change on the 777 to alleviate rate of descent, as thrust is pulled off (conditions depending, off course).
It's very much a "drive it in" approach with the 777-200 & 300's with the 300 more critical on pitch changes especially on a last minute go'around where tail-strike is a real issue (They both have tail-skid protections).
B737NG's & B747 much the same on attitude changes at flare.
Happy landings
