It's always a good idea to feed the appropriate size feeders. I capture wild snails allow them to lay eggs then move the eggs to a new container and discard the wild caught snails. I'm currently on my first generation of CB snails.

I don't feed wax worms as I've heard they are too fatty and I haven't seen good results when feeding them. I do feed super worms but usually only once a week or so. There is absolutely no way one of my Jackson's could eat a full grown Hornworm. Those things are huge! Hornworms of about 1" +- are a good size for a sub adult/adult Jackson's