Strangely enough, the VERY day i posted on this thread about dd still drinking from size 1 teats at 9.5 months, i went home, gave her a bottle and she just started fussing. I changed the teat to a medium one and she drank her milk without any further ado. I now use the medium teats all the time! Just goes to show - they work it all out for themselves in the long run!!!
Sharon