hey there @blockurator. After reading your post I got more questions than critique, but my questions may carry a little nugget of critique...

As some comments already pointed this out - Any position can be justified with faith. If 5 different people can use faith and arrive to 5 absolutely different conclusions, then faith is not a reliable method to discover what is actually true... so from this, my immediate question is why attempt to test something that doesn't actually aid us in getting closer to truth?

Also i feel like I cant really hone in on the argument itself... Can you please describe what you mean by 'faithfulness'? To me the 'ness' part signifies that there is some sort of 'faith scale'... For example if you say it's 'dark' then you are describing a quality of something, but if you want to discuss the degree to which it is dark you'd talk about 'darkness' as it signifies a scale... i'd like to hear your definition though, cause i might be way off...

I'm also very puzzled by the phrase "God's Faithfulness"... Its hard for me to understand your stance without fully grasping the meaning of what it is. I would like to know the definition of what you mean when you say "God's Faithfulness" I think that will help me understand what you are trying to test and experiment with.