Hi Phil
I have Endomondo, it's very good. There are plenty of other activity trackers out there too. Strava is used a lot by cyclists.
1. I've had this bike for a year so have fiddled with the fit a lot. Recently changed the stem to a slightly shorter one, and fitted it lower down to get me more aero, has definitely helped.
2. I have three cassettes - a 12-32 for hill climbing (will be using it on the Hathersage Hilly Triathlon in 4 weeks time), a 11-25 which I've been using as the regular gearset and an 11-28 which I have bought but haven't used. Dura Ace is incredible though, the quality of shifting is beyond compare
3. I have a major mental block about clipless pedals after my arm-break last year. Broke my humerus in 5 places. Still not mentally ready to try them again, so am using old-fashioned toe-clips for now, which I am comfortable with using. The Dura Ace crank is ridiculously stiff too
4. I have carbon 50mm aero tubular wheels, with some Tufo S3 tubulars tyres, running 120psi - they run really nicely. Agree, no flapping t-shirts either!
5. Bike weighs bang on 7kg all up. I've lost 12kg in weight this year. Weight is the enemy!
Cheers!
Dan