Nicola,
We have thought about that too, putting Module #9 as the first module. It is something we are considering. Have not used this particular program from Quicksilver, but the general principles are the same/similar to the whole concept of bowel/liver detoxification. We tend to agree with you that working on digestion overall is a great way to go with SIBO, but we do understand too that antimicrobials tend to provide quick symptom reduction/relief for some people. But, the decision is really based on the sensitivity of the individual. For extremely sensitive people doing the support supplements/cleanse seems to work well, whereas with others with just minimal problems you can always get more assertive from the beginning.
I hope this helps.
Dr. Woeller