I bought one for my wife last year.
I had never shot with a ld shaft prior to hers- ive since shot with a few others and i will say the cdx does what its advertized to do...
It feels alot more "rigid" than the standard shafts im used to. They take a bit of getting used to at first- it really shines on long shots with right or left english
The guy actually lives about 20 minutes from my house so I got to see him build the shaft for my wifes mcdermott- definantly a quality product thats usa made with premium material.
I asked the owner Chris why he doesnt distribute them to larger online dealers - and his answer was that by marketing them on his own he can make and honest living and sell them to the gp alot cheaper without having to be a "middleman".