Apologies if this has been said above, but what I don't understand is that, with the Shimano gear, you get the same low gear (24×36) and a lower high gear.
I appreciate the arguments for closer spaced gears and smaller rings, but how much closer is an 11-36 ten speed compared to an 11-34 9 speed? As for the 42 tooth outer, I usually replace my 44 with 42s when they wear out.
With 36 tooth lows being available on 9 speed cassettes, could I not get most the benefits of a 3×10 using 24 32 42 rings and a 12-36 9 speed cassette?
Another question and slightly O.T., could an aluminium free hub take the torque generated by a 36×22 gear? I know that this isn't being offered with the Shimano's 10 speed, I'm just wondering.