I'm looking for a reversible, easy-fold down pushchair and have narrowed my search down to the Baby Jogger Versa. I am struggling to decide which version. I like country walks so am tempted by the GT wheels but from what I've read they don't claim to be all-terrain so I'm wondering exactly how much the different wheels improve the performance over rougher ground. Does anyone know?! I've fallen a bit in love with a red one but only the standard version comes in other colours - the GT is black only. I'm prepared to give up my red dream if the GT is noticeably better performance-wise.