There's one other thing to add to this:
Carrying a smidge of power to the ground can help offset the drag of the prop if you are completely at idle. Just a hair of throttle 'just' prior to touchdown may do the trick.
I just got through doing five complete greasers in the 'other' citabria at the school I fly out of. An almost unbelievable experience for me, as I normally 'drop in' from about a foot or so.
I have been thinking about this, and the only thing I can think of, is that, the idle speed is a teeny bit higher on the 'easy to land' Citabria, and that this made it sink a tiny bit more gently after the flare.
Worth a try !! To much throttle may cause a go-around if you as ham-fisted as me though...