Yes exactly. I should not have shown a "curve" for flare in this way because it is misleading. The different exposures just add more data points to the sample, but it doesn't add any value to show a curve of multiple exposures of a uniform target for this purpose, and it is confusing.
I prepared a set of grey cards that measure one stop (metered) apart for the second part of the test (single exposure of grey scale) but should have posted that part first so that one could see the displaced curve that then merges with the "non-flare" curve.
Sorry about this, people. Wish there was a way to delete the thread at this point. The last thing we need is a thread that confuses people.