As someone with a lot (A LOT) of miles on a 10-42, I can say that going from the 11-42 to the 10-42 is huge-- with a 38T in the front, going from an 11 to a 10 in the back is almost 10GI. It's absolutely worth it. And I use the cheapest SRAM 10-42 I can get. xD all the way.
__________________
