I'm trying to understand your question, but the answer would be yes,the more negative the camber the less likely you would rub, unless you have coilovers. In that situation because of the macpherson design of our cars you would lose some backspacing due to either the lower bracket collar, spring perch, or spring itself. In this situation you worry about the inside. With regards to rubbing on the outside fender, the more negative camber you have the less likely you will "rub". As far as hitting up inside the fender, where it begins to flare out, this can happen. If your damping isn't sufficient for the lowering height and spring rate you're running then this will happen.
I had the JIC FLT-A2's since they first came out. We were the first to purchase and test this product. I have gone thru all the steps and fit tons of wheels on these cars as well as countless other apps with both coilovers and OEM style lowering susps.
With the FLT-A2's I did not witness this problem where the wheel hit inside, and I had a pretty heavy system in the rear when we were showing the vehicle. I have now gone to a more comfortable setup, tokico HP and Espelir. With this new setup I have experience more movement with the suspension. I have not experienced any damage as a result. There are solutions to these problems. Depending on how much available stroke you have you can always run a larger bumpstop.
I hope this answers your question thoroughly. It is possible that deviations may apply vehicle to vehicle. They are not mirror images of each other. I believe I have also disclosed this in postings as well. However I do have countless testimony for the wheel fitments I have tested. Feel free to email me and I will do my best to refer you to the prime person with that wheel fitment.