Just got the new style of chucks from Flowtoys.
I have to say... A+ man. I am in loooove. The caps are nice and tight. I have new "alien glow tubes" and they are thicker and brighter than ever. The chucks are slightly smaller than the first version. The alien glow tubes come with a lifetime warranty, which is pretty sweet. All of my complaints about the 1.0 have been fixed in 2.0. Spinning them is only slightly louder because the rope is tied to the chuck (the first version, they were held with this soft plastic material that was beginning to wear away after months of hardcore spinning). And the vibrance...

These are my new favorite chucks. All is fixed. Of course, I still love the graphites...but uhhh...but it's going to be tough to beat something that can light up a room and leave little laser trails when you spin them (especially when taken w/digital camera). i want to see what would happen if you spun these with a fog machine..hmmm! Biggest plus is how awesome Sean (the maker of the flowchucks) is. I haven't had such service, he's awesome and always took the time out to give me advice, repair the older chucks, and help me figure these things out. Haven't had better service than with Flowtoys. A+.
(I didn't spin this pic below...I'll post some up soon..but this is pretty rad.)
http://www.flowtoys.com/home.php