When i fed them to my beardie, i would just toss them into a baggie and float them in warm water until thawed just like rodents.

As for higher nutritional value, i might be an idiot but i dont see how they would be higher than whole prey. I see them as being equal since really the only difference you are doing is grinding up whole prey. Sure you skip the feathers in the case of birds but i dont see that as adding that much more. A 100 gram link would equal 100 grams of whole prey worth of food unless i am missing something.

The main reason i want to try them is to just give variety to my smaller snakes.