Great stuff d math. Although I would refrain from calling your "paracord harness" a merc harness. I did this once and got royally chewed by a blade forum member that seemed to think because he thought of it first he was entitled to the name merc harness and was the only one allowed to tie para cord into a figure 8... So to save you from future grief and a headache call it a "homemade paracord harness" or something to that effect.

On another note, I'm still undecided hot to carry my boogie, so any more examples would be great to see.