I also like to aim for just past the start of the runway.. I like to come in under light power and chop the thottle right before the threshold. The speed generally doesnt matter unless I came in way too hot to begin with. I will place the wheels of the plane at about 6-10 inches above the runway and begin adding elevator enough that it doesnt begin to gain but also doesnt get down too early.. after a short period of that, I will let the plane settle down to a couple inches and then keep adding elevator until I am happy at which point I slightly relax the elevator and set the wheels down gently, then watch the nice short roll out..