Variflow teats - what's the deal?

[BettyButterknife]

Managed to buy some buy mistake today when I meant to buy 3 month ones... What is the point of them? Can I use them in conjunction with other ones?

They worked ok with my DS! Stating the obvious but the baby gets more milk if they suck harder rather than getting frustrated, I would recommend

they are quite useful if you are using thickened milk (comfort formulas or using gaviscon et al) because of the way the hole is cut (an X instead of a O ).

When DD went through her fussing and distractable stage i bought some thinking that she would be able to take more but she never got on with them.

the flow varies depending on which was you position the bottle (the avent ones anyway) which are a slit. Useful if you use night time formula from 6 months as its thicker.