Having a reaction to NAC is a cheap and easy way to pretty much determine you have the infection. I tend to doubt that the load of cpn is determined by the reaction. NAC only gets to one phase of the bacteria. Kind of depends what phase the majority of your bacteria are in, I think.
I would have welcomed a distinct reaction to NAC. I only had a runny nose, some ear pressure and a bit of a feverish, achey (pre-flu-like) feeling. It lasted for a few days. I desperately wanted 'confirmation' and didn't feel like I'd gotten it, but when the brain fog lifted dramatically after only ten days or so on the actual antibiotics, I knew I'd hit on the right answer for MS.
The difference between what we do and what we are capable of doing would suffice to solve most of the world’s problems. Mohandas Gandhi