i wish i could explain how to know when it’s the right time to follow process and how to recognize those rare times where you simply need to march to the beat of your own drummer. first, as in the case of almost any sin, there is the sin of disbelief. but, it’s important to make sure the stroller you purchase is easy to use. i'm 5'5", 135#, and the size 6 fits just perfectly. we should be finished with this one later on this week and will be sending the tool along to the next person in line. 