Cool test

Have you tried a similar test using the same type amount of product you would actually use? For example, instead of dipping into product, just apply as you would to a gun or knife (a thin film, wait, then wipe off)
Also, instead of "soaking", just leave the test panels outside, in the elements. Soaking would be a good test for under water items, however, results are different when the items are in the air (just a note
Your test would be a little (or a lot) different then my test of the same, just based on the surrounding atmosphere, however, you would get a more realistic example of what each product would do in a "real world" example of performance.
I used to do some testing for BAE Systems years ago. Sure, I would send truff off for "real" testing, such as the salt spray test (Sherwin-Williams did this for us), they were set up to meet mil-spec testing), however, I also did a lot of my own testing..., it has been a while now, LOL!!
Have you ever tried "CP90"?
That is something you may want to test, just for curiosity sake

I am no longer working, so, no longer testing professionally.
I would like to try the EEZOX and compare it to CP90.
I could send you a sample of CP90 if you would like to try it out if you could also send a sample of EEZOX.
We could each test them and post the results.
(no, I have no idea which would "win", I never used EEZOX, but would sure like to try it
Thanks for taking the time to test and post. A lot of people do not realize how much work goes into it, to do it correctly..