I’m not familiar anymore with the old A320 but from my experience on the Neos and Sharklets ones I never saw sluggish behavior with the A/THR. Most of the times the large thrust variations I saw were due to aggressive pitch inputs by the PF. I always put thrust idle just before or during beginning of the flare at latest to avoid the engines spooling up unnecessarily.
Flying A/THR off is one of my favorite things while flying in good weather and it amazed me how the speed is so stable on A320.
I posted it earlier in another topic but if you look on that video a friend of mine made while I was flying raw data on A321 you can see how the speed is very stable and I barely moved the levers below 1000 feet.
Don’t know about you guys but personnaly I always fly at or above VAPP ( +5kt max ) while flying A/THR off to give me some margin. Don’t wanna take the risk of triggering a low speed protection.

pineteam, what you are doing is the correct way to flare and land. Ironically in airbus Speed is stable in manual thrust because Airbus FBW is flight path stable and not speed stable. Aircraft maintains the flight with thrust change. In speed stable aircraft thrust change will cause pitch change which needs retrim.

Check Airman, #15, "… why not just turn it off." :ok:

The landing flare is a pitch manoeuvre; use pitch control for adjustments.
The OP is concerned with a possible firm touchdown; this is minimised with pitch control.
Providing the flare is commenced from the recommended point - appropriate parameters, and using the recommended procedure then the touchdown will be safe - safe; not necessarily soft.

Aircraft are certificated for a range of flare circumstances, wind-shear, speed error, with speed / alt / energy margins similar to flaring from Vref -5 depending on type.
Don't invent new procedures to minimise circumstances which have already been considered in certification. The crews' primary responsibility is safety; a safe landing, not necessarily a soft landing - which many passengers do not understand or don't perceive the same factors as the pilot - familiarity or location to cg.

For info:- The Landing Flare of Large Transport Aircraft http://naca.central.cranfield.ac.uk/...rc/rm/3602.pdf