Paracord stretches quite a bit. Someone posted a stretch test here a few months ago and I was surprised at the amount it stretched. For the $ amount (actually cents) per foot and the relatively small amount of Amsteel needed for a set of whoopies, it only makes sense to go the DIY route, or buy from one of the cottage vendors here if you have nothing but thumbs. IMHO ... HYOH ... etc, etc.
Sarcasm is a dying art.
Eagle Scout September '85 Troop 339 Smyrna, TN