Thanks for the input.
@Craig: The 45 coming off the ledger is there both for aesthetics, but as well to provide access to that #$@% electrical feed box owned by the power company you see at left. So in your continuous post design, the posts would be 3" from the outside perimeter of the girder/doubled-rim-joists, i.e. 4" from the edge of the (1" overhung) decking?
@lefty: Thanks for the hanger references! When Simpson's says "Skewable", do they mean it can be wrapped around a corner? Each corner turns 45deg. Would the corner have to be "dog-eared" to accept such a hangar? Here's a closer look at the stringer detail, from above:
I'll have to visit the lumber yard to check availability, and go through my design again. I've added some detail to the framing. While you're looking, can you comment on my doubled outside joist concept seen at left in the figure below? It is designed to accommodate the 45° "ledger extension" to support the shorter joists beyond the ledger proper. I've switched here to 2x8's: max joist span is 12'3? The short "stub" joist on the left is there just to square off the corner (still not sure what to do about the "stub" railing above it).
Looking at this, it occurs to me I should move that "full length" post on the ledger extension over to avoid interfering with the rail post, and possibly notch it and bump it up in size to a 6x6. It's also possible I should double the outside joist all the way to the beam. Not sure how to make that connection solid. If cutting wood were as easy as drawing in 3D, I could carve out a 6x6 to perfectly hold both sides.
Thanks again.