My frame is in for my new road bike and this next week they are going to start building it up. I have to decide the gearing I want and thought I'd see if anyone here had any advice about this particular decision. It's Campagnolo Chorus and I've narrowed it down to either the 12-27or 12-29, both 11 speed. Compact double up front. I currently ride a standard double with an 11-25 older 10 speed Chorus so either one is going to give me a wider range of gear ratios than I have now. At this point, all I can think is that one gives me tighter grouping for smoother shifting and the other gets my two lowest gears a little bit lower, but bigger jumps at that end (23-26-29 as opposed to 23 -25-27). Just wondering if there is anything else to think about before deciding this week. I do not plan to race, but do want to do some faster group rides. it is relatively flat where I ride, with some hillier terrain for organized charity - type rides. Thanks!!