Summary: I currently play with a Srixon W-506 which is at 450cc. I just got a Z-RW 460cc to see if the 10cc of additional forgiveness will help. The driver is just as long, but the first thing I noticed right away was the high pitch "ping" sound at impact. This sound reminded me of a slowpitch softball bat.
Summary: This driver is great. The face is hot and the ball seems to launch well with good compression. Shaft is ok and the ball has a low boaring flight. I would say the driver is a great buy and worth the money.
Summary: This driver is the best I have ever used. I can blast drives of between 300 and 330yds with my swing speed of 110mph with this driver. I have the 8.5 degree, with an aftermarket, Pro launch stiff shaft. I like the appearance of this driver, and the great feel of it.
Summary: This is the longest most forgiving Driver on the market today. I have 2 same loft different shafts for different playing conditions. The whole face is a sweet spot, the only driver more forgiving is the Alpha RX 460 but it is not as long as this one.
Summary: This is the straightest driver I've ever had. My only criticism is that it launches the ball higher than I'd like. I thought it was the shaft, but it has a high kick point and is 9.5 degree loft. I think the reason for the high launch is the low center of gravity in the head.