I was happy with 8. Nine seems to have a bit of overlap and 10 is techno-weanie-ville to the max. This though is the opinion of a grumpy old man. I have a 2X9 on a road bike and it is as much as I want. MTB is a 3X9, I have been pricing 2X9s for losing a few grams of weight.
__________________
I think its disgusting and terrible how people treat Lance Armstrong, especially after winning 7 Tour de France Titles while on drugs!
I can't even find my bike when I'm on drugs. -Willie N.