Re. Eduardian
Agree on the lower than 50% victory conditions for exactly the reasons mentioned.
If the center of the map is in fact fluid, I think it's okay to have a unique point of congestion on the edge (or two or more in larger variants, depending on their size). However, I still think it's better to find alternatives to creating known bottlenecks as, like you said, you don't know what stalemate lines will emerge with more play or major analysis.
Like the move to unpack British supply centers. Of all the countries, Britain should be the last to have yet another defensive advantage.
Love the new boundaries of the Bay of Biscay. This not only gives Britain and France more options with each other, but allows France needed flexibility with regards to becoming more of a naval power vs. a land power by eliminating the huge problem of having two distant coasts that each have home centers.
While I like the redesign of French spaces overall with regards to French defense and the Iberian peninsula, this does give Germany a big edge in the lowlands, and I'm not so sure that's a great idea. It should influence Germany to head west more often than not, making the likelihood of a deadly German/Russian alliance even greater.
Moving Berlin and removing the unit in Munich/Bavaria are needed moves to weaken the German defensive advantage, but again the bulk of German units in the west will influence Germany to move in that direction and be friendly with Russia more often than not. You might look at taking the Frankfurt territory out, or taking the supply center there out, and relocating it in the east.
The elimination of White Russia is also a needed move to help Russia from disintegrating into too many distant areas.
The addition of Jabal Shammar is a great incentive for Britain to move east, but as with the French moves pulling France away from northern Europe, this will often pull the Ottoman Empire away from Central Europe. Both of these revisions should often combine to leave Austria in more peril with regards to Germany and Russia, if not immediately, with the early years.
Would like to see the impassible South Algerian Desert in gray, and more natural territorial shapes for the Sahara and Nefud Deserts (like the South Algerian).
Also prefer the units in the 1st version (though they shouldn't be see-through and take on the color of the territories they're in, but be colored in their own right) and think the armies need to be differentiated more from the fleets if you're going to go with the flags.