I paid for 15 jumps before my PAC (AFF equivalent)
Yes, you must be confident with yourself
5 days later I was buying 10 additional jumps...
From the 7th , you can make 4 or 5 jumps a day depending the wind and your packing skills.
Here if you do an initiation jump you have to follow the theorical course of the AFF the first day: IMO, too much energy & time spent for only one (or two) jump - Just do your AFF!