Anyone got any thoughts on the so-called performance hybrids out there -- road/touring bike components, but back- and shoulder-friendly flat handlebars? I've been looking at the Specialized Sirrius, along with a few similar types from Cannondale and others, although the Sequoia could be an option too if I decide to bite the drop bar bullet. I ride about 100-150 km a week in a combination of short commutes and longer city/country weekend rides, using a mid-end hybrid right now. But with a history of shoulder problems I'm wary of switching to drop bars unless I'm quite sure I'll be able to get used to them. Any feedback appreciated.