Something to keep in mind. On FAN engines, 75% of the thrust is produced by the fan, 25% by the hot air. The N1 fan is freewheeling, nothing connected to it therefore it acts like a giant flywheel. When you close the TRs, N2 will immediately decelerate, but N1 (the fan) will slowly reduce RPM. Since N1 is producing 75% of the thrust, the deceleration is not as rapid as with the older non fan jets (DC8,DC9,727 etc).
That being the case, at 50 feet, slowly start closing the TLs so that at 30 ft the power is at idle, then at about 10 to 15 feet bring the pitch up to 6 degrees and hold it there for a smooth touchdown right on the 1,000 foot marker.
Holding the power till the retard call makes for a long flare and landing much past the proper point. Know your airplane.
My 2 cents worth.