Hovaczech found a macrame link showing similar diagrams to how I do the alternate half-hitch and sent it to me. The closest one is the 3-strand version, I have 4 strands with the inner two being wrapped as the core by the alternating half-hitches. I actually start off just like I'm making a regular cobra stitch paracord bracelet, adding just 1/2 inch to my actual wrist size, looping onto one end of a side release buckle, then thru the other part of the buckle, and start the alternating half-hitches there.