Well this is turning out to be a timely thread for me. I just tested out a 2010 Madone 4.7, which only comes with a compact double. My old road bike has a triple, and I use the granny gear a lot. Unfortunately for today's ride I wasn't able to try it out on any real hills, so tomorrow I'm going back for a longer ride which will include some rollers as well as two hills that I normally need the granny gear on.