His engine is a 2 stroke and EGT is very important on those engines! They are not like a 4 stroke at all when it comes to EGTs. The article in the Sport Aviation was interesting, and makes me think I'm worrying about EGTs on my Jabiru to much, but don't try to apply it to 2 strokes or you will hear that deafening silence in short order. Take care, Jim Chuk