I don't know the answers to all of your questions, but unless some one is sick and about to die, and has little time, they probably shouldn't do more than one or two protocols at once. The body needs time to detox slowly - it's not good to release too many toxins at once and overwhelm the system.
It is a waste of money to take probiotics at the same time as Humaworm... Humaworm kills everything including the good bacteria that are probiotics - its better to take them after completing the cleanse, as they need time to recolonise.