New to forum here and this post caught my attention. I'm a huge fan of spins, always have been. They are both an informative maneuver to practice as well as a ton of fun (done right).
When I was getting my CFI-A, my instructor was terrified of spins. He was a terrible spin teacher and would baby the Cherokee into a barely spin then recover with barely a turn. I learned more from the FAA examiner on my check ride than I did in training!
Now, I practice, demonstrate, and train spins. I'm a CFI without regular students, mostly providing BFRs for friends and co-workers. My basic approach is fly in the "familiar" airplane first, then get into my 7KCAB for air work. Start with incipient, then 1/2 turn, then fully developed - up to two turn spins. Worked really well for a friend who has a Mooney and really needed the opportunity to get comfortable with spin recovery. He stays far away from even dropping a wing on a stall due to the poor spin characteristics of his bird.
One more not, I'm a fan of entering a spin from a pseudo-snap roll; I think of it as a crisp, accelerated stall entry. I pull full aft stick and rudder from about 60mph. The resulting spin is fairly flat and passengers seem to like the ride more than the earth stare you get from a full stall entry.