I was feeling motivated, so I drew it up. Here's an 8x8, that is way of out square (it measure 9.5" on on corner) to exaggerate things. The tenon slopes 1.5" over 8", the wedge slopes 3/4" of 8", and it is haunched to 7".
[IMG]
http://i167.photobucket.com/albums/u122/timberwrestler/Halfwedgeddovetail1.jpg[/IMG]
This shot describes things a little bit. The haunch would be cut out after the mortise is complete.
[IMG]
http://i167.photobucket.com/albums/u122/timberwrestler/Halfwedgeddovetail2.jpg[/IMG]
And here's a shot straight on at the inside of the post showing those 3 angled surfaces:
[IMG]
http://i167.photobucket.com/albums/u122/timberwrestler/Halfwedgeddovetail3.jpg[/IMG]
It's weird, but it works. Maybe I should make a video...
