There is no doubt that
repeated approaches is harder on an engine than straight and level
cruise, but most pilots would sacrifice some engine wear to maintain
proficency (Wasnt that the gist of this ?)

The tripping point in this discussion has been the absolute refusal by
some participants to accept your last statement (and the point I've
been making) as true and correct.

I will restate my point: Repeated application of full-power-to-idle
throttle management (as done in go-arounds, touch & goes, and engine
out practice) will wear your engine (and prop governor, fuel pump,
throttle linkage, etc.) out faster than NOT applying full power to
idle.

The gist of the thread *was* whether or not engine out practice was
worth the expense (and risk) of this added engine wear.
Unfortunately, that debate was lost in the muddle over whether the
wear was actually occurring.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"