In this article from houseplanthouse.com, we are given all the info on propagation. My favorite part is the section discussing how long to let certain plants callous before propagation.
https://houseplanthouse.com/20...
7 Solutions for Stunted Seedlings from Epic Gardening!
https://youtu.be/h7rJoowB-kI
In this video, an experiment is done to see whether or not changing the water during propagation affects the outcome.
https://youtu.be/IkUPf98jyWw