I have been working hard on smooting out my landings. A friend at the club who flies a Lanier Edge 540 has really helped me the most, and his advice was the same as above. Control rate of descent with throttle. Set up for final approach and once lined up start EASING in up elevator to dump speed without climbing. If the plane is sinking too fast add a couple of clicks of throttle. Once the glide slope is back on track ease back to idle again, repeat this as necessary. If I time it just right I am at almost full up elevator (nose level to very slightly up) and gliding 2 or 3 inches above the runway with plent of runway in front of me..
Last little trick he taught me to stop bounce is, when the plane is about 3 inches off the ground try to hold it there as long as possible and let the plane slow down and set on its on. If I do it right I end up touching down with FULL up elevator and no bounce at all with about 100' of runway to use to come to a stop. .