I used to hunt smooth touchdowns until I buggered up a landing with a very old and bold Captain in the LHS who gave me a bit of a pep talk in the cruise on the next leg. His point was if you can't validate your performance calculations by hitting the slot at the threshold and planting the mains on the aiming point there's no point. The TDZ is pretty bloody long and you can be a fair way past your aiming point and still in the TDZ.
These days I score my landings based on speed control and touchdown point. Adjustment of -1 for a cruncher and +1 for a smooth touchdown. How smooth your touchdown is can all depend on which main gear sinks first - on the 737 if you touch the left first you only get the flight spoilers and the aircraft sinks nicely. If you touch the right, you get all the boards and it drops like a sack of potatoes.