I have a Callaway Titanium 360cc 10-degree driver which came with the ProLaunch Blue R-flex shaft. I just bought a Tour Edge Exotics 460cc 10.5-degree driver which came with the Aldila NV Exotics R-flex shaft. Here are my observations
1. Diameter of the Aldila NV "green" shaft is smaller (by naked eyes) than that of ProLaunch Blue shaft
2. By wiggling both drivers, I felt that the Aldila NV shaft is a little bit more "flex" than that of ProLauch Blue

How do they play in comparison:
1. I am confirmed that the Tour Edge Exotics driver is at least 10-15 yds longer than my Callaway Titanium driver. Not sure if it's due to the Aldila shaft or a combination of Tour Edge Exotics driver head and the Aldila NV shaft
2. The ball flight of my Tour Edge Exotics driver is higher than that of Callaway driver, I strongly believe that it's due to the Aldila shaft... maybe that's why it's 10-15 yds longer. The good thing is that I have not been able to balloon a golf ball with my Tour Edge Exotics, but I've done a few times with my Callaway driver if I try to tee it higher.

Conclusion: I like the Aldila NV shaft so much (high ball flight, golf ball seem to jump off the club face better etc...) that I already sent my Callaway 3-wood out to reshaft using the Aldila NV shaft. Hopefully it would perform well as my Tour Edge Exotics drive

My thought : If you have a driver swing speed of 85-90 like mine, then you would get more "kick" with the Aldila NV R-flex shaft. If you prefer just a touch stiffer (but not too stiff) then consider the ProLaunch Blue shaft R-flex which is also a VERY good shaft

Happy Golfing