It seems that these Wave design knives offer the fastest possible draw, but there are two issues I can't really tell from watching the videos. First, I wonder about reliability. Is it reliable and easy enough that you are guaranteed to get the blade out on your first attempt in a high stress scenario? And if you didn't, how fast is it to open manually after that point?
And secondly, or perhaps more importantly, is there any chance of slicing yourself while drawing?