I know that we won't get 100% accurate results from scaling photographs, and I have tried to be clear where I have made assumptions and estimates.
This is really just me following along with where some simple estimation techniques and math take me. I find it interesting, so I plan to keep up with it as more stuff comes out. I am not saying this model is right or wrong, rather, it is the best cohesive explanation for the available evidence I have right now. Another explanation could be that FFG is treating every model individually with no overarching system, in which case it is just an amazing coincidence and my bad luck that the first few models coincide so neatly with a logarithmic scale