My cylinder head temps stayed the same. This engine has never had temp problems. It is always around 250 for all four.
Regardless of what the speed calculator says, this prop is much better than the wood prop that was on it. And I can tweak it as needed. 1200 fpm climb out of a jabiru seems very good to me.
Greg I agree on the cruise theory. I think 2400 rpm is a good number to keep the engine for long periods of time..