CFI position going to your head? How's that work? I get more grief now than I ever did before and most of it is actually very constructive. A good CFI (IMHO) should not be stand offish, but able to find out exactly what goes on when you aren't there. That means having good relationships with students, PPL's and the other FI's.
Just because we maybe called the CFI doesn't mean we know it all and most of us welcome people coming to us with ideas and techniques. Some maybe rubbish, but many aren't and I'll gladly usurp someone's idea and put it into practice! (After telling everyone how I came up with it in some death defying situation. "There I was with nothing on the clock but the makers name.........")