Thanks guys, forgot to remove IMEI and SN
In the process of re-flashing all roms and kernels I accidentally wiped /system yes, so I had to re-flash via ADB sideload, so by now I do have a ROM installed again.
I actually went to some kind of Stock using one of Guru's Nandroid Backups.
As for S-Off, there is no indication what so ever why it doesn't work with some?
Of course it's obvious if rumrunner
tell you that it doesn't work, but as I said, I got quite a few bottles open, but then nothing...
I'll just have to wait for the next solution to come along?