Thanks Bike Chick!

Types of rides: 27 miles and up, to centuries. Not many hills here, but I aspire to take it on rides like this one: http://travel.nytimes.com/2010/08/01.../01Biking.html

My issues with the Felt are (1) vibration, vibration, vibration (it rattles me, and my hands resent it especially on long rides; (2) the reach is long, so the current stem is very short, which makes the bike "twitchy". I have the suspicion (because of the similar geometry) that I may have tweak the Vigorelli in a similar way. When I test ride, I know I will have to cope with the factory stem and handlebar, so I'm afraid the test ride won't be 100% as informative as I would like.