Hi We have the Tommee Tippee powder dispensers that sit in the bottles, which I find perfect for our needs. However, having changed milk recently I struggle to fit the full feed into them. They are sposed to hold 8oz, which with Aptamil, though a squeeze was fine. Having changed to Hipp lately I now struggle to get 7oz in. I thought about getting one of the other types of powder dipensers (with 3 sections) but wondered if I would have the same problem? Does anyone else have this problem?