@Foxes I had my doubts until I watched it myself. Spiders have crazy spacial awareness! The D-Long legs used several thin strands and very gently attached them to the widow's legs before pulling them tight by lifting the other spider. Total finesse!!! It was very interesting to watch. It's also a rather long process, and the smaller spider is operating under threat of death if anything goes wrong. It was amazing how gently they can attach the web, and most of it without ever making direct contact with the widow until it's safe to envenomate.