Maybe your crawdads are a lot more athletic than mine are, but the ones here kinda....scoot when they're in a hurry.
That said, I think it depends on the size of the plastic, what the structure/cover situation is like, and how the fish want it, and how patient I'm willing to force myself to be to fish a certain way.
to further complicate matters, you should also consider a swinghead.
The point I'm trying to make is that they all work fine, but the fish'll let you know what they want.