This is how mine takes f/t. Just grabbing the tail by the tongs is the way I do it.
The only reason I was jiggling the feeder is because I figure it makes it more exciting to hunt, but she's taken prey held still and also laid on the tub floor before. She's a good eater.
Also, I don't even thaw in the fridge- I just put it straight into hot water to defrost and warm it. The whole thing is less than 10 min waiting time for a small rat.