Oakleaf, it isn't about hesitation in unclipping for some people. There are other reasons, usually physical in nature, such as having a lame foot, or having an artificial joint, or having a balance problem in the ears. Other people wear road shoes that are smooth on the bottom, and have a problem with unclipping just the one foot. It is different for everyone, that is why there is not only one way to unclip and stop. There is the recommended method, which is feasible for many cyclists, but not all cyclists. And as we see more aging cyclists on the event rides, with bunions, neuropathy in the feet, and other ailments, we see more unusual ways on how cyclists clip, unclip, start and stop. The results are the same, no matter the method, and that is start, stop and be clipped in while riding. The method of the start and stop doesn't impact the cardio endurance or the speed.