Just going to post in here, running sdbags modified rom seems to be giving me better battery life.
I take this tab with me to work and use it during my downtime quite regularly, and normally by the end of my shift my dock battery is fully drained and I'm down to about 20% battery at best. Fairly slow day today, heavy usage, some PSP emulation, I'm sitting at a cool 60% as of this moment. (dock battery 0%)
I haven't bothered looking at the battery stats, so anecdotal at best, but for anyone having battery issues it may be worth the ten minutes it takes to download and flash this.
Looking forward to the Cromi releases, I was rocking that on my TF300 with rom2sd as my primary driver till I got this.