Force closes often reflect data corruption. If you have used a non-journaling ROM in the past, that can cause it, and you may need to start from scratch. That issue won't change with a new ROM.
I would carefully restore one app at a time, to see if you can find the problem. I've never had good success with the batch restore of everything, on any ROM.
Flashing twice is a common requirement for many ROMS, for whatever reason. When moving to a new ROM, I usually wipe everything x3, then flash twice, and haven't had any problems (other than known issues).
I really like this ROM, but some people seem to have a problem installing it. Fixing permissions is important after any restore, particularly the nandroid restore you use to turn journaling back on.
I am using Genocide Kernal right now, just to play around. On my wife's epic I think I'll probably keep 1.02 which had insane batterly life for me, and it ran with the EC05 modem just fine for me for over a week.
We'll see, hopefully we'll have another update soon.