Here is my 100-stitch swatch (before blocking) for FLAK. Initially I kept loosing my place when trying to keep track of where I was in the repeats of the individual cables (some were 2 row repeats, some were 4 row repeats, some were 12 row repeats, etc). Sometimes I "zigged" when I should have "zagged" (see braid cable on lower left of swatch).
Here is the 100-stitch swatch after blocking.
The horseshoe group came out to be just about 5 1/2 " and the braid group 5". The filler stitch stayed about the same as the first swatch.
Now on to Part 3 ("Let's Knit Some Saddles").