my first UQ was/is synthetic and, i think, they're more forgiving in how tightly they can be suspended.
synthetic insulation doesn't like to compress as easily or as compactly as down.
i can draw the shock cords tight with my synth. and it really doesn't matter how tight,
against the hammock/body, it hangs it will hold it's loft more evenly.
with down, too tight = CBS or too loose = CBS ? with synth. too loose = CBS and too tight is alright.
it took me several coldish nights to learn how to better suspend my down UQ.
there is also the "migration" issue that is more pronounced with down.
i hope that makes since?