There are two philosophies on how to control your glide path:
* Power for glide path & pitch for airspeed; or
* Pitch for glide path & power for airspeed.
Which one is right (for you)?
After some introspection, I found out that I'm using both methods.
When I begin the approach (at 4:38), I use power for glide path & pitch for airspeed. First, I throttle back to a known power setting for a 500 ft/min descent and trim the aircraft to my desired approach speed. In this phase, I control my glide path by small changes in power. I judge my glide path mostly by the trapezoidal form of the runway and by my altitude. The trimmed aircraft needs just small trim corrections to maintain its airspeed. At the end of this phase, the position of the aiming point (runway numbers) in the windshield stabilizes. Now I have a good idea of where it should stay for the remainder of the approach.
On final, the aiming point becomes more and more important to me. To keep it on its position in the windshield, I switch to pitch for glide path & power for airspeed. This makes it much easier for me to maintain my glide path. With small pitch changes, I keep the aiming point on its position. If I get a little too low and the aiming point wanders up, I pitch up. If I get a little too high and the aiming point wanders down, I pitch down. Now I control airspeed by power. This saves me the need to change my pitch angle which would cause my aiming point to wander around. It also makes it easier to maintain airspeed in case of changing wind conditions which often happens near the ground. And it makes it easier to decelerate a bit to the correct over the fence speed.
After a short flight to the west, the video contains a full approach to LOAV via "Uniform" and a Touch & Go with some comments on the beforementioned methods.
I'm always eager to hear what works for other people. So if you have your own ideas and experiences, I'm curious to hear from you in the comments below!