Well, I know, it could be better with 2.3.7, but I just never downgrade anything, it is hard to explain why
once I installed 4.1.2, I'm not going to install anything lower
but I think I won't install 4.2.x or 4.3.x, yet never say never
Anyway I don't know, what happened, but after 2 factory resets my phone works like a charm - on 4.1.2, with 60 apps and without swap. No random reboots for 2 days. It is a miracle! I hope it will last long.
I must create a backup with CWM now!
This ROM is really good
but sometimes it is difficult to maintain it so.