I bought the violet/blue one, a beautiful combination i'm totally satisfied.
In addition a very fast shipping from Arcade World UK. Perfect.
I got the yellow green one. Super pleased. The nut allows light through also, so no need to mod.
Really nice colours and feels nice and smooth. Really looks the part. I can imagine it to look superb when illuminated.
My only complaint is minimal, it's that the Red/Blue one, is about 80% Red, which on the picture seems fine, but in person it's almost like there's no Blue at all.
Wish you could buy the same ball with a built in LED, as that would really allow the ball top to, for lack of a better word, shine.