This is how I did & work fine for me many many time:
-Backup (using iTunes), + Chinese soft-91pc (Contact & others)
-Backup Springboard layout
\User\Library\SpringBoard\*
-Restore
-setup as new iphone (for 4s Absinthe/Cinject to work)
-JB
-install Mobile Terminal & changes passwords (alpine)
-install Appsync
-Restore from 91pc backup
-Install Springtomized 2 (I reduced my icons, column & row), respring
-Install FolderEnhancer (Reboot, resprint)
-right click the device (iphone), restore from previous backup
-I let it run while I go to sleep (I add lots of abs & take age to restore all).
-Copy back contents of the \User\Library\SpringBoard\*
-Install back gridlock & all setting & layout back to normal & reliable if you do correctly.