dfk41 “Does anyone have anything to add that I can learn further from please?”
You seem to have made quite a few brews now. But, it’s difficult for us to see what is going on, in terms of a progression, without knowing the grind setting for each brew, the time that you see dry bed and the weight of the coffee brewed. Also, for each brew, how much you liked it with a simple score (maybe a comment on what you feel is wrong with the taste based on previous brews).
You can’t ascertain grind size by comparisons to sea salt, or by vague perceptions of what might be coarse/medium by one person’s perception. You can, however, read the number off the grinder’s adjustment scale.