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. The different sound comes from the SP700 titanium face material which feels harder than the W-506 face. The W-506 has a much better sound and a softer feel.
Summary: What I like best about this driver is its solid feel and the club came with the an PURE shaft by Fujikura S- 360. My ball flight was mid- flight, straight and long.This had an toned down muted sound on impact, which is excellent compared to the loud pinging noise of a Mizuno MX 560. The length is about a 43" as opposed to your 44.5", which translate to an easier handling, but you will lose some distance.
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. The weight might feel a bit light for some people, but I adore everything about this club.
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. In fact the whole Srixon line of drivers W-403AD, W-506, and this one out perform any thing else out there. They have different charactoristics and head size but the most solid Drivers on the market.