Have you found that teaching styles change slot over time?
Yes. Teaching is simply another side of the same hand. One side represents learning Aikido yourself, the other is help others evolve. Both sides require attention, practise and training. Much like your technique evolves, so will your teaching style. After a while you find what works and what does not. Also it has a very personal touch. As a teacher you look with your eyes to the group and decide what to do next. Another teacher most likely sees different things. Let alone either approach to working on the perceived problem.
Next realise that your group also changes: students that stayed with you for a while, will have progressed and the new ones have others problems than the 'original' group. Group dynamics is dynamic
. But it is fun and very rewarding