To clarify: this help for jrz5024 is for him running the 2.1 Eclair version ROMs right? That setCPU app to overclock is for Eclair because Froyo source code has not been released yet?
I was in the same situation as you when I first rooted - I wanted better batter life than what I was getting with the stock. I went with Baked Snack and it's been great. Most people agree that it has by far the best battery life of all the 2.1 ROMS. However, it seems like his development has stopped for the time being and he hasn't developed anything for the Epic for 2.2, which is a shame.
As for the 2.2 ROMS, I haven't tried them, but from what I'm reading, the battery life isn't nearly as good as anything for 2.1.
Well so far I've been more than happy with my battery performance gains. The biggest jump in battery life is when the phone is on standby. Running stock, I typically lost 10% of battery every hour the phone was on, or ~15% / hr with heavy use (texting / playing music / web browsing). Now I lose about 7% / hr with heavy use, and only 2-3% / hr with light use! During the 4 hours my phone sat in my pocket at work last night, it only dropped from 93% to 89%.
Baked Snack is a good choice for anyone who wants a no-frills ROM that is simple, streamlined and optimized for battery life without sacrificing performance, not to mention rock-solid stable.
Lastly, The notification drawer I noticed now has a silent toggle which I guess is stock in the TW version of froyo- but I'd rather have a toggle for all data off (just calls and SMS active) there's widgets for this but not sure if froyo prevents them and I have no need for a silent toggle when I can activate that with the volume rocker.
Yeah, I can say after experimenting with 2.2 roms (quantum and others, EXT4 etc) that I can't possibly use any of them because of the ridiculous battery life that 2.1 roms (bakedsnack in particular) allow.
Today my battery died after about 8-9 hours (using the latest quantum), which is not good cause I didn't have a chance to charge it. With BakedSnack I've achieved over 12 hours in similar circumstances, and longer with light use.
I really, really can't wait for custom kernels with 2.2...
do any of these roms allow you to move apps to the sd card? that is the one main thing i want from froyo. i would like the faster quadrant scores you get from ext4, but would be willing to pass that up for the time being for the better battery life associated with bakedsnack and sd card capabilities if that is possible without froyo