I have not yet had it out at night. I plan to start doing a ride or 2 in the early (dark) morning during the week so that should help me test the lights.
The Colnago is an Ovalmaster. They don't make them anymore. It has an ovalized down tube and the top tube is also shaped - like a diamond with the sides pushed in. I got it almost 6 years ago. It's seen a lot of miles. It's Campy record 9 speed with the racing T triple crank (because that was before Campy made a record triple - and now I hear they've stopped making them again!). Since it's just a 9 speed and I know that I will need a SUPER granny gear for long brevets, I plan to get a smaller ring on my triple. I spent an inordinate amount of time in my granny gear, on the flats mind you, during the 600k last year.