VDD2 is stable for me, and it's active, as I see a "1" when I try cat /sys/power/sr_vdd2_autocomp

It's part of the voltage settings file i made. The only instability I get is if my phone thinks there has been an unexpected reboot, and I try to load my custom voltage settings within the first 1-2minutes of the phone booting. Haven't noticed any other type of instability.
But, my phone works with even less voltage than the starving and drained files you see around, so that may have something to do with it.

Battery life-wise, my phone lasts from morning to before bed, with moderate usage. I have bad reception (both wifi and cell reception) at work.

my battery tips:
-stay in gsm mode, switch to 3g only when you need to browse.
-i'm using 100mw wifi with max power saving.
-no widgets that update
-screen brightness hasn't changed my battery life much.
-online via wifi or gsm 24/7 (when reception allows) for nokia messaging.

ask questions if you'd like, gtg for now

edit:
i.e. was at 90% off the charger this morning at 8:45am
it's 11:45pm now, and I have 23% as reported by battery graph.
today was interesting, as I noticed the vdd on startup bug, so i was testing with it, and the phone rebooted 3 times in a row because i hit my custom settings QBW button too fast