I do this sort of weird push off when I get started. Strong leg (right) is almost parallel to the ground already clipped in, and I sort of just stand up on it while pushing off with my left leg as I go. Ass on the saddle and by then my left leg is clipped in and I am going. Never ridden fixed with anything other than SPD's so I haven't had the experience with flipping the straps and dealing with that.