I think this thread is confusing.....
The normal sequence of events (that I use) for flying an ILS is:
at the final approach fix, gear down, 1 stage of flap, set power, pitch and trim. Don't touch power again if I can help it. I'm aiming for 100kts, becasue 100kts will give me a particular time to the missed approach point. Too fast and I'll fly past it and possibly into a mountain, to slow then I may not get in when I could have done.
IF my trimming is a bit dodgey and I am a little low, my airspeed should be above 100 kts, so a bit of back pressure on the elevator will bring me back to the glide path and also slow me down. Now I'm established again, I re trim and get it right this time. I haven't touhed power either, and I'm comming down the GS just how I want to.
A little bit high, and a bit of forward elevator will bring me back to the GS and also increase my speed, which should be below 100 kts becasue I know that at this power setting in this configuration I'll get 100 kts out of her descending on the GS.
*Small* power adjustments can be made to take into account wind, after all my guestimations are based on Ground Speed and and not airspeed. Also I might by flying into somewhere like Van Nuys which has a steeper GS, which I have to take account of and obviously the same power setting and I'll be going too fast.
If you keep messing with the throttle when flying an ILS you will generate a nice Sine curve. Try it on a Sim and analyse your descent later on and you'll see what I mean
Cheers