Whizzer cone removal

I have big experience with removing whizzer cone, if you leave WC.,
is impossible to get good result with using Tweeter, All my model
Bache Audio i cut WC  in Tang Bang driver, i tell you based on long
time listening and measuring using RTA system. Dont hesitate, just
get sharp hobby knife and go ahead. The WC-is primitive tweeter
and cannot compare with  update High Quality Tweeter or sypertweeters.
I think WC came from   old professional audio using in Cinemas and came to Home Hi end for folk who liked vintage
I am wondering why some famous  brands using WC

@fourwnds    But to get good sound is not easy, some times you have
to carefully choose the cap crossover, to avoid sound too bright or
dull,

  you have to crossed 7-9k , is best to use High efficiency fostex
sypertweerers ,

@timlum 
I am using this driver in some of my models. Whizzer cone , read my
previous post is the simple piece of paper  and coudnot play tweeter
role
 

@fourwnds  to make shure you do it right , you have to  operate another
tool , like  RTA system  and measuring microphone , it is not break you 
budget, I know you ears is number one , but you can discovery a lot a good helpful things,