Hi, I'm just after people opinions on the mountain buggy duet v3 or the out and about nipper I need a double as will be making a lot of hospital trips but want an all terrain as we like going for long walks around the countryside. I have a 5 month old and 4 year old who is nearing the weight limit of the mountain buggy, has anyone used it past the weight limit and it's been alright? Thank you 🙂