Little ones won't eat

[ineedsoap16]

I purchaces 4 snakes at the Oct 12 Hamburg show and have some issues. The IJ and male hognose are eating like champs but the female hognose and Thayeri kingsnake still haven't eaten. The female hog went into shed the day after we got home. I have tried a coupla of things but to no avail. I tried frozen pinkies (no luck), brained frozen (no luck with the king, the hog tried but regurgitated it), and now live pinkies (no luck).

Anything I'm not trying?

BTW, their temps and setting are at where they should be so I can't say its a habitat thing.

Any suggestions will be useful. Thanks