that makes perfect sense! i suppose those first two have to be cut in order for it to be flat... ahhhh yes this is all coming along nicely! lol
to put all of this together.. im thinking...
with 3 bundles this is how it would go (for a normal density)
2 perimeter braids... and braid the rest however as long as its flat
sew 2 tracks around (under) those perimeter braids from part to part (right side to left side or vice versa however you sew)
for the rest of the tracks sew zig zagged with normal spacing flipping the tracks.... then maybe once you get to certain points go back in between them and sew tracks together?
that still leaves the top part of those perimeter braids exposed.. i cant imagine how how those would get sewed together. lol i just have to try it out and see how it goes.