so i am going to try to switch all my balls to f/t. i have fed live, stunned and pre-killed but never frozen.

so my question is how long should i thaw them? should i throw them in the fridge the night before then just soak them in warm water?
can i just take them out of the freezer and thaw them warm water? for how long?

its not like i can cut the thing in half to find out if its completely thawed. how long to be absolutely sure its ready for my snakes?

thanks