I use the EDM830, and you can see that even during taxy the TIT is 900-1000+ F. If you idle for a couple of minutes before shutdown then you normally get it down to below 800F, which has to be a good thing. Still I am sure there are a lot of myths, and as long as it is not oilburning hot then should be ok. I then pop the oil filler flap to let the heat out of the engine bay...
Yea, we taxy up outside the hangar, apply the brakes, then sit until TIT has cooled then shut down
