There are four Zwift pace partners: Diesel Dan (1 - 2.4 w/kg); CoCo Cadence (2.5 - 3.1 w/kg); Bowie Brevet (3.2 - 3.9 w/kg); and Amelia Anquetil (4+ w/kg). CoCo is my best girl and riding with her is great. The question of the day is: how long can I keep up with Bowie? A related question is whether Dan makes for a decent warm-up. This is germane because Dan and Bowie tend to get paired, as do CoCo and Annie. Round two was the ride of truth. I got dropped into Bowie's group ride in the middle of the Titans Grove hills, part of the "Sand & Sequoias" route. I saw trouble when everybody else in the group were on Tron bikes! There was no fiddling with controls now, it was hang on for dear life, get out on the rivet and pedal. I decided to try for five minutes and succeeded. I might have lasted until we exited the woods and got out in the desert, but it would have hurt. Now I have a line in the sand, so to speak...