DD is nearly 9 months and we are still using the Avent 3 month medium flow teats. Now wondering if we should move to the 6 month teats? She drinks her bottle pretty quickly as it is, so I don't think she needs any help in this area! However, I wondered if faster flow teats would make the process of moving to drinking from a cup any easier? Has anyone else used these or just stuck with the 3 month teats?