Hello all! I'm going to be renting a double stroller for my 3 year old DD and my 6 year old DS. I'm trying to decide between the city mini and the citi mini GT. I rented the regular ct mini in the past and it worked great. But my DS is older now and is close to the top of the height/weight range of both strollers. I have noticed that most of the descriptions of the GT on the rental websites have the height/ weight limitations a little higher than the regular city mini. But it is also 4 pounds heavier, which isn't a super big deal. Just curious about everyone's thoughts and/or experiences with these two strollers. What's the big difference between the regular and GT and is it worth the slightly higher price? Thanks in advance