I've read anything from old school experience breeders doing it to people on forums talking like they know exactly what snakes want and feel... the truth is, what may work for one pair may be the exact opposite for the next enclosure. You're taking a risk, which, if monitored closely, is still maybe not the best choice. But, if you feel like you want to do it, determine if you're ready to accept the possibility that snek 1 kills snek 2. Have fun, be smart. Good luck.