the only problem i've had is sometimes some of my chams strike them, land them, and then can't chomp them down and 3/4 of them goes to waste, but over all not many probs here
I use superworms as one of my feeders along with silks, roaches, crickets, etc. I almost always give supers a light dusting of Ca or Ca/D3 since they have an upside-down Ca-P ratio. They are considered high in fat so like all feeders, keep things mixed. They have a very long shelf-life. Keep them in a wheat bran medium and feed them the usual various things to keep them hydrated and gutload. They work real well to attract chameleons by climbing around on the screen.
Problem/experience: I inadvertently forgot about some-100 that I bought and that my father-in-law put in a shopping bag when carrying in from my car. The in-laws were visiting us and had bought a t-shirt as a souvenir. My mother-in-law found them, they chewed through the bag and started escaping in her suitcase. LOL! Can you imagine? She even found a few more escapees a day later in her shorts pockets. Ooops.
Superworms are great in moderation and they are very easy to keep. Toss them in a nice large container full of bran. Add a cut up yam to it twice a week and they are good to go for moisture. Dust them with calcium and away you go.
I actually believe the Superworm makes a decent staple feeder.
The reason is that they will eat just about anything and are, therefore, extremely gut-loadable.
There are periods where my very finicky veiled (you know him as Kitty) will eat nothing else.
I have stopped worrying about this, and started super gut-loading the superworms.
I agree that zophobas kept in cereal or bran (whatever) and nothing else, are probably not the best staple food....but mine eat a variety of fruits and vegetables, cricketfood, and Total brand cereal.
Variety is the key to success, as is making sure every feeder you offer is as nutritious as it can possibly be.