Natalie, Welcome to Lactnet!! Just a weirdo suggestion for you. I've never heard of those nipples but if I had one I would put some water in a bottle and test it out on myself to see what happens! Debbie (strange nurse who is into trying out most things we ask our patients and children to do - you know, the empathy thing hahahaha). Seriously, I don't believe babies should have to do or eat anything the parent wouldn't be willing to do or eat. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Destiny is not a matter of chance but a matter of choice. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Debbie Codding, RN Mother-Infant Unit, Naval Hospital Oak Harbor (Whidbey Island), Washington state [log in to unmask] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~