I don’t think there is any benefit in discussing in great detail a process that happens within a billionth of a second.
Such processes are discernible only to the mind of a Buddha. It is good know that he has described the mind processes in such detail. But I don’t think what cetasika are incorporated at what stage has been discussed in Tipitaka. That would serve not much added benefit.
Nibbana is attained via getting rid of greed, hate, and ignorance from our minds. It is better to focus on that primary goal.
In order to get rid of ignorance, we DO NEED TO see some of these details (some of it to realize that the Buddha really did know these processes inside out, so that we can faith in his Dhamma). But there is a limit to such probing. There is no need to know such details as what cetasika are incorporated at what stage.
January 15, 2019:
Just posted “Breath Meditation Is Addictive and Harmful in the Long Run“.