Where did the vertical spikes on SFGAm 2001 come f

I know the park said 180' Invertigo style, but where did all this talk of vertical spikes come from? I hope it is true, but I did not see anything official to lead me to this conclusion. However, several sites have been discussing this and I want to know if anyone knows for sure or if this is just wishful thinking. Thanks in advance.

I am not sure of this myself. I hear everyone discussing it as if it is a fact but I haven't actually seen confirmation. Maybe we are missing something.