I've used the piggybacking technique to switch from asfs and mice to norways with success as well. Glad it worked for you! We have acinnamon het pied girl that switched back to asfs for months with the previous owner. We gave her an asf her first meal with us, then took a small norway and covered it in asf bedding for 10 minutes to scent it.. slammed that.. and is now eating unscented norways. Good luck with your male, hope he is just as cooperative![]()