First of all do not even attempt it on the P-51 unless you have a lot of taildragger exp. Warbirds can be nasty as most have the main gear at or behind the wings leading edge which makes them kinda twitchy, mainly on ground handling but landing them requires a very soft touch.

On the Extra just cut throttle to about one or two clicks above idle just after you turn to base as long as you are about 50 feet above the runway and just as you cross over the end of the runway at about 10 feet, cut power the rest of the way and let it settle down all the while adding up elevator SLOWLY.

Just like the real thing...