I find the gen1 H800 (havent tried the others) to be neutral to front footed, but maybe thats just the way I have it tuned with the 178 tail and foilparts adapter and heavy shimming.
I have confirmation that the gen1 wings are compatible with the new mast and vice versa.
I got a bunch of the info, but I don't want to spill the beans. What
@Piros says is all consistent with what I found. The width scales with area in the gen2 (AR ~constant), versus gen1 where width was mostly held constant (AR lower in larger sizes).
I didn't hear anything about the A+ side pin that
@toomuchepoxy referenced, but there were some vagarities that could reference something like this. Either way, there is cross compatibility between gen 1 and 2 foils and masts.