DScott - I totally agree. As a tall (and thus heavy) rider who spends a lot of time climbing, I appreciate the lower gearing offered by compact cranksets but to get back the top gears for descents, I have to go to an 11t cog. Losing that 16t cog in the middle and having (yet) another multi-tooth jump in gearing is definitely felt.

Even switching between my 7900 11-25 and my 7900 11-27 (which has 21-23-25 and 21-24-27 respectively) is noticeable. I look at campy 11speed cassettes and notice they can do those gear ranges with smaller or fewer multi-tooth steps and it makes me jealous a little bit.