Sharpie only taught 3 pointers in BIK when I did my endorsement in 1984 at Coldstream.
Nic Cauldwell taught me to do wheelers in an Auster at Tyabb when I did a couple of hours with him before buying BYM but he felt they were not as safe an option as conventional landings due to the inherent bounce and things unravelling quickly.
I generally 3 point BYM whereas I would always wheel a C170.
Kaz