I've viewed several airline DVD's, and I noticed that they do not retard the throttles until the very last moment before touchdown, and on a 737 video I watched, not fully at all until after touchdown.
Don't try to apply "heavy" to "light" ..... aerodynamics, different power plants and more ....
Yes there is the basic flying theory that applies across the board, but how you achieve it from type to type varies ......
Which brings me onto the my next point, unless I've missed it, I don't believe anyone has asked the poster what type he is flying, as that will have an effect.
Like with a lot of things in flying, flare technique is best not taught to perfection, but practised to perfection. You have to get used to the type and how it handles, get to know how it feels, how it reacts .... it's only then you will be able to achieve consistent greasers.
As someone wiser than me once said ... a true pilot straps the plane onto himself/herself .... you don't strap yourself into it.