I confess.....I didn't do it.....and would not be that brave either.  They sounded good when I bought them though and still do.  It was discussed here in an old thread.

Special deal for Decware forum folks.  Also, have a like new CSP.  I'm goin the DIY route these days.

Chris

Brad, I did...I think I was the one that gave the guy that modded these the idea, mine didn't look quite like that though. I started with 4 holes lined up with the 4 mounting holes larger holes towards the outer rim of the whizzer and made them look like tear drops. I eventually ended up whit 8 holes total. I eventually tore the whole driver apart to build Radial drivers out of them. They did sound good, I thought, but the double donut on the DFR8 has bested them.

BobZ