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Usually, only recovery webbing is used because it's simpler to pack and easier to implement, so "webbing" and "shock cord" often refer just to recovery webbing. A more general term is riser, which refers to whatever connects the parachute to a falling body.

Which cord do I use?

Below is a table matching types of webbing/shock cord. Each material has varying sizes and tested load limits. It's usually best practice to take the tested load of the cord and divide it by 100 to get the maximum rocket weight to fly with that cord. This is twofold: shock loads are difficult to characterize in flight (between drogue opening shock, and the shock when the cord runs out of length), and knots severely decrease the performance of the cord. The performance can probably be pushed beyond this rule of thumb, but

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