What purpose does the soft shackle serve? I'm not familiar with soft shackles being used in either hammock or tarp ridgelines.
Hammock RL: The RL hangs in your face when using it to sit. The soft shackle enables you to easily disconnect it to get it out of the way.
Tarp RL: I use it on one end instead of a 'biner. After saving weight switching to Zing-it! it seems like a waste to use a 'biner.
OH NO! I'M BECOMING A GRAM WEENIE!!!