Leaning
I think the main reason for not teaching Leaning and getting the student to do it, is that it shags the engine if not done properly.
When i brought the subject up in standarsation meeting I was told quite firmly NO. Been done before and maitanence bills went through the roof, cracked spark plugs every check, cyclinders losing compression etc.
The school will factor in the fuel costs into the price along with engine life. Much prefer to waste fuel than risk killing a engine before its time is up.
MJ