I tasted the 2004 Caymus Cab at Caymus in August. About all I can remember is that it was a good Cab, but not for $70! $50 is a good price, though. It is more substantial than the Phelps Cabernet and a 90/92 point effort.
I still have some 2001 & 2002 Caymus, but I've stopped buying the regular Cab and only buy the Special Selection, as I would rather have one bottle of the Special Selection instead of the two bottles of the Caymus Cabernet, especially at $70 plus tax.