Posted for "Shannon Knoepflein" <kycshann@kyol.net>:

www.advancedpilot.com <http://www.advancedpilot.com/>   go to one of
their classes, it will help you immensely.
  
What you found with cooler CHT?s running LOP is correct.  Running ROP
you are using fuel to cooler the cylinders, while LOP you are using air.
  
There is a time for both, you are correct.  For a NA engine, anything
over 7000 feet you are about 65% power, so you can literally run the
mixture anywhere and be safe.  However, with your turbo engine, you have
to be more careful.  On climb, you want to be WELL ROP, about 150
degrees.  For cruise, I would run 50-75 LOP and bump the MAP a couple of
inches to get the power back.  For decent, since you are LOP cruise
running nice and cool CHT?s, just leave the mixture parked LOP and land.
I pull the prop back to about 2200 and start pulling MAP to setup for
landing, leaving the mixture alone.  I land with prop partially out and
mixture leaned.  My go around checklist is throttle, prop and mixture.
  
These are all techniques dicussed and fully explained at the seminar
Highly recommend it.  Also highly recommend LOP.
  
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Shannon Knoepflein   <--->   kycshann@kyol.net