Don't mean to sound ignorant, but my study on this (Mooney specific) suggests full forward take off to decent. Is this overly simplistic?
On the prop? Or the throttle?
In the 182, that's about how I operate the throttle - Full throttle from takeoff roll until late in the descent when I need to start slowing down. (The DA40 needs to be slowed down somewhat earlier.)
The prop, however, is only full forward for the takeoff roll and after the final power reduction before landing.
Engine-wise, here's what I do in the 182:
1) Ground ops: Mixture aggressively leaned, prop full forward, throttle as required, cowl flaps open.
2) Takeoff: Everything forward unless I'm at DA >4000.
3) After takeoff: Prop back to 2500 (from the full 2600) around 500 feet, check EGT.
4) Climb: Lean to the EGT noted in the initial climb.
5) Cruise: After reaching cruise speed, prop back to desired cruise setting (2200-2400) and mixture leaned appropriately, and close cowl flaps.
6) Descent: I don't change a thing on the initial descent other than pushing the nose over and trimming for a 500fpm descent.
7) Late descent: <3000 AGL or so I'll pull the throttle back to 20 inches.
8) Pattern entry: Within a couple miles of entering the pattern or on a 3-5 mile final if I'm not going around the pattern, I'll pull the throttle back to 16 inches, which should eventually get me down to 100 mph (well into the white arc).
9) Final descent: Leaving pattern altitude, I pull the throttle back to about 12" or slightly less, but what I'm looking for is to get it out of the governing range so I set the throttle such that I'm getting 2000 RPM. At this point, prop and mixture go full forward. Full flaps, 2000 RPM, 80 mph (69 or 70 KIAS) the rest of the way in.
10) Go around: Climb it, clean it, COOL IT (cowl flaps open) and call it.