the only that scares me is that you are teaching new pilots with the arrogance of someone who has a lifetime of flying under their belt. and i am certainly not accusing you of being the best pilot here - only acting like it.
a lot of us have probably spent a lot more time flying multis and teaching than you, but have YOU ever flown a glider? arguing with more experienced pilots, especially in areas you have no expertise, really shows how naive and inexperienced you are.
keep in mind, just because you can fly a twin and have a CFI doesn't mean there is nothing left your peers and especially your elders can teach you. wisdom is what keeps us alive in this job and the only way to continue to gain it is to keep an open mind.