OK just rode with my PM for the first time today. I left the default settings on the 705 for the Power Zones since I had no idea what i would have. Todays ride was 75 miles over three good sized climbs in this area.
The interval in question is up Mount Weather for the DC area locals. I didnt go all out because I knew i had about three hours left of riding. The average of the just under 20 minutes was 297Watts. My question is, is this a good number to base my power zones off of for now? Particularly for a 12 mile TT next Saturday, or should I aim higher?