drilled rotors can be turned it is just difficult to do as well as harder to find someone to do it. i know because i just had mine done. generally, you are right about there being little advantage when compared to a properly made "normal" rotor save for the quicker water evacuation which is what convinced me to try them. also, a buddy of mine has ebc pads on his bike and says that they are only ok. he is not terribly pleased nor really displeased.

00 black/tan svt, #2052 of 2150, born 2/1/00 formerly known as my csvt "Nothing in the world is more dangerous than a sincere ignorance and conscientious stupidity." -Martin Luther King, Jr.