i like the idea of different yarn for the bottom and strap. i forgot until kitkat brought it up ... i don't like poking the i-cord through either, so what i did was on about row 60 i added YO's, then on row 61 i did K2TOG after i passed each YO to get back to the correct #. worked great. i think i figured on the side sections to place them centered with 6 stitches between each YO, then the front and back YOs were 7 stitcjes from the corner markers. make sense?