Went from a 2003 Trek 7300 hybrid to a Cannondale Caad 10 5 w/clipless pedals.
I've got about 400 miles on the trek, and about 70 on the Cannondale now, so they're both fairly new.
My hopes in buying a road bike was to increase my average speed and just generally have more fun in the street.
The rub is: I'm a lot slower on the Cannondale. I find my cruising speed is about 10mph on the road bike, and 13mph on the hybrid. That's just where I "feel comfortable."
Putting a little effort into it, my average speed over several rides on the Cannondale is about 11-12 mph. On the heavy hybrid I'm at 12.5-13.5 mph.
The fastest I can go, until my legs don't go anymore, is about 26 on the Trek, and about 23 on the Cannondale.
(This is all checked by GPS.)
I thought fixing the seat height would help. There's ONE sweet spot that doesn't bother my knee arthritis which I've now found on both bikes.
I like to ride in the drops almost exclusively on the Cannondale. Riding on the hoods is terrifying if I need to brake in a hurry. I found the only way to stop the bike without scheduling in advance is from the drop position.
I have extremely tight hamstrings. Maybe that's the problem? Maybe I just don't know how to pedal? I try pushing forward, pulling back, all that in the pedal stroke.