I think that Step Turn and Mad Jock have given us all a much needed reminder. Airspeed is important, but much more important is angle of attack. AoA isn't instrumented, but any pilot in visual conditions (which means anybody still studying for their PPL) can and should look out of the window.
Yes, absolutely, use instruction (or the ASI) to get it right initially, then use visual attitude. That doesn't really change with weight, and once you have that pinned, nothing more than the very occasional glance at the ASI (unless somebody's stuck a post-it note over it, in which case don't bother) should be needed.
Incidentally, I'm just going to quibble with Chuck's terminology a moment...
(2) The " flare " from the approach attitude to parallel with the landing surface.
(3) The hold off.
Most texts would call your (2) the roundout, and your (3) the flare.
G