Are attunements sent by chi ball?
No, I don’t use the Chi Ball method which personally I don’t like myself receiving attunements that way. I find them to be not as strong as just sending the attunements the normal way. Of course that probably has less to do with the method and more to do with the skill of the person creating the chi ball. So, the question is not just does someone send energy this way but how skilled are they with creating a good effective chi ball. When I do attunements I send them immediately and they will start immediately unless you have set an intention that you do not want it to start until you give it permission.
In my opinion a Chi Ball is likened to a Psi Ball. Psi Balls take some practice and skill to make. A Psi Ball is where you energetically create a ball of energy, continuing to fill it with energy, and possibly grow it, until you are ready to then solidify it. Once complete the Psi Ball is thrown or sent some where. I have in the past learned about and practiced creating Psi Balls and that is why I know that many that are sending Chi Ball attunements see it as being way simpler than it really is. Many don’t have the control of energy to create an effective Chi Ball. I am really surprised so many are sending attunements this way. It is not a part of traditional Reiki.