Help Mumsnetters! I'm pregnant with twins and trying to find the best pram. Keen on the Uppababy vista v2 but not sure I like how the baby in the bottom carrycot is restricted by the one on top when stacked. I guess it's only for the first 6 months but keen on views. I prefer this system as it seems to have loads of functionality and the Bugaboo Donkey seems wider and is heavier but would love opinions!