Don't know what this is worth... but i'll put it out there.
After the release of SC 2.9.2 I did some very rigorous tests with the phone battery. I mean scientific type work in the manner I tested.
What I found is that ...Cell Standby was completely off and I decided that I would never pay attention to that when it comes to the battery. I found of all the variables it didn't follow a direct correlation to battery life.
For instance,
One would expect a lower battery on a day that you had the display on 2hrs versus 45 minutes. I.E. Battery life is inversely affected by Display time on.
Increased Display time---Decreased Battery life.
However, it wasn't so with the time without signal.
On more than one occasion, with all other drains on the battery consistent, but different TwoS (time without signal) the correlation wasn't correct. The day with higher Tw/oS (50%) for instance would actually have better battery life than a day with lower Tw/oS (10%). This happened multiple times, so I concluded it was bunk, and the reporting was off.
I don't know if this applies to KB, or ED01, just thought I would put it out there. If the bug still exists, which it may, than you can disregard your Tw/oS in regards to your battery life.