TL;DR: I got negative W’bal values but my calculated W’ is unchanged. How to adjust for this?
Looking at the profiles for my last race this part weekend I see that my W’bal went into the negative zone twice. See graph below. In the past when that happened the W’ value calculated in my power curve would change and I would update the number in my Power settings. This time however the calculated W’ value was unchanged. How do I adjust for this? Is this manual adjustment of W’ value in my settings the correct approach?