I'm thinking of a new project, upgrading an old XC frame with a "one by" drivetrain. You got the dirt cheap 1x9 option and the super cool 1x11 and 1x10 kind of just hanging out in between. I am hoping the community has some insight into these setups. Who uses them and what are your thoughts/experiences? Is there a huge difference in performance vs the price? Where are some good places to get information on purchasing, instillation or maintenance? Any information in this regards would be a huge help!