Agree that you were probably tired on the test day.
You can use the power calculator at noping.net/english to estimate your power on a climb. That's more accurate than going by your teamates power meters. They are probably not pushing as much weight uphill as you are, so you're putting out more power at the same speed.
This sucks on hills but on the flat its reversed and the light guys will be hurting to stay on your wheel. As one of those guys I dread it when some big dude goes to the front and starts hammering.
Now's not the time to be worrying about being fast on the training rides. Follow the coaches plan, he should be bringing you to a peak for the most important race(s) on the schedule.
It's tempting to try to lose weight fast, but much more than a pound a week (average) is going to make you miserable and impact your training.