Freeza also used what appeared to be a laser to totally destroy a mountain that he had thrown Piccolo into. The laser went through the mountain and then about 2 seconds later the whole mountain was destroyed. So Iâm guessing there are many uses and functions of the finger laser.
As far as the FF not being able to PS, well all I have to say about that is that you should be able to PS with it. I mean its a huge friggin beam, I understand that he put most of his power into it to make it the first time, but still its a very powerful beam and should have enough starting power to stop most beams.
Now that I'm thinking of it I never saw Vegita just throw it at the ground in order to kill someone, that just doesn't make any sense why he would put all that energy into it and then toss it at the ground.
They need to make the FF a little more powerful, not in explosion size or in damage, but when it comes to PSing with other beams. I have seen a fully powered FF be defeated my a fully powered Kame when both people were fully powered, turbo, and Vegita was 48 million stronger than Gohan.
I don't know about anyone else but that seems like a problem to me.