I emailed Brandon on this and he suggested that the shockcord is not necessary on the SF with the fixed doors, just girth hitch a 4 ft tie out on each door and tie them together to keep them out of the way when not in use (I spliced fixed eyes in the ends, easier to tie together).
For the pullouts, I came up with a little different setup. I built 2 four ft and 1 eight ft tieout with fixed eyes via locked brummel in all ends. I take the side facing into the wind, and girth hitch the 2 four footers to the pullouts. I then bring the tag end loops together from the 4 footers and girth hitch one end of the eight footer through these. This gives plenty of length for getting a little more height with a hiking pole. The nice thing about this setup is that it is light and easy to take off and hank up for storage in my gear bag. I kept my corner tieouts to 5 ft as suggested by Brandon, and you can use the extra line from the pullout tieouts to get a little extra length on your corner tie outs on one side if you want to set up in "porch mode"