I`ve managed to make it work, apparently you have to wipe data too, which is a no no for me, so I`m back to Team UB Rom for the time being.
Thank you guys.
I`m using it, no reboots here.
My update procedure is as follows:
- back-up
- wipe dalvik/cache/system
- install rom/gapps/kernel
- reboot
- count the starts while the phone "optimise" all my installed applications
- enjoy