Doubts for Moving to AOSP/CM topic

Hello All

i recently rooted my Z2 by downgrade method, thinking about moving to CM12 or PA as soon a stable build is released but have some doubts in that area.

1- if i make a nadroid backup through the dual recovery i have now and later after unlocking the bootloader and flashing a differnet recovery and ROM if i restore the old backup will my bootloader be locked automatically?
2- can i use my dual recovery to install a CM ROM( after a clean wipe of current system of course)?
3- i have read about people having problems after installing recovery after flashing a CM ROM, and i havnt really found a coherent answer for that in all the forums that i follow. can anyone give a proper method of how to flash a recovery after the ROM so that i can restore my backup just in case?
4- if my nandroid backup does not relock my bootloader than does restoring my TA backup relocks it?
5- if after flashing a CM or AOSP Rom i try flashing a stock based ROM like existenz or MoonWalker can i restore my TA Backup on dat? will that in anyway affect the root capability of my device? will this relock the bootloader?

Sorry for a list of questions. have only worked with locked bootloader till now and not really handy with sony devices. have only been few months since i got it.

[Q] Zooper Widget Moving Object with Hours topic

Hey, im new to the form and had a question using advanced parameters in zooper widget. I so what im trying to do is have a picture of city Sky line on my home screen and have a sun move with the hours in the background.. I was playing around with the click widget and taking the code from the hour hand to try and make it move only 180 degrees but it just wouldn't work correctly, mainly because I don't understand the code. If someone could tell me how to make it work, it would be greatly appreciated. Thanks in advance.