Good news everyone,
My new very little project, previously XperiaHomeFixer.sh, renamed to XperiaHomeManager.sh now,
which will allow to manage the Home datas, backup, clean and restore them,
aswell as fixing problems with the 5th row in the AppTray menu (got that working just now ^^)
is in really good shape and became working faster than I expected.
This all means a simple fact : no more need to clear the home screen datas now !
If you guys have something else in mind that could be added to the Fixer part,
feel free to ask.. I'm thinking about a Desktop's 5th line cleaner in the fix too,
since I allow the 5x4 Desktop in HomeCustomizer..
EDIT : And what about something to delete unused desktop screens's remaining icons?
vr5411, when I'm done, you'll be able to link to the script to help some users getting through with this problem.
'night all !