m.ai6yr.org/users/ai6yr @k2za @abraxas3d It sounds a sad situation. I spent my life teaching and we've just about finished the sixth HamCram course for new licencees:to me it seems self-evident: you should use what's best for the students.
This is rarely material prepared by others, as there's the little stories and examples from your own experience that add memorable point-of-interest to the presentation. Also the continuity (why one slide follows another) that will differ from one presenter to another. If a pre-canned preseentation aligns with your mental flow - great, but otherwise the presentation can seem disjointed.
Here the NZART provide the syllabus, a study guide, and and practise exams and are happy to let branches run "HamCram" when and how they like. After all, what matters is the numer of new licensees. To that end we stream our's over Zoom which can help those in other cities "attend". They may take the exam at another branch - doesn't mastter -- it's still one more call added to the "Fellowship of electronics wizards" - apologies to Bill N2CQR and his great podcast and sitesoldersmoke.blogspot.com.