I still use toeclips and straps. I can recall only one incident, about 15 years ago, in which I could not extricate a foot in time to prevent a low-speed "cow tip" -- my chain skated over the top of my inside chainring as I tried to accelerate from a stoplight trackstand. This was entirely my fault, because I had otherwise delightful third step gearing (49-46-43 / 13-16-19-23-26) with too wide a spacer set between the inside and middle rings.