I don't know how anyone else feels about this topic, but I guess I will find out.
While I have always thought Biu Sao was a useful technique (as far as blocking outside, looping, haymaker type of attacks), I have always thought Biu JEE as an attack was pretty useless. Why? Because there aren't too many areas on the body that are vulnerable enough to get hurt by your fingers, whereas it isn't all that hard to break your little digits.
Where are the areas that could truly be hurt by a finger jab? The eyes, the hollow of the throat...and that's about it. And your aim has to be INCREDIBLY on point to hit these targets accurately, especially during the chaotic nature of a fight.
Personally, the only time I would ever use a finger jab is if someone had me pinned against the wall, and I could sink that jab right into the hollow of their throat. However, I think there are some people out there who might think it is the kind of attack that could be used more frequently than that.
Your thoughts?