Backup Custom ROM?
Is it possible to do a full backup on a custom ROM with the Sprint HTC Arrive? I know I can backup my stock ROM just fine, but all the backup software say it won't work on custom ROMS, so I wanted to know if there is a way to backup a custom ROM in case I want to try a different ROM and if I don't like it go back, flash the first custom ROM, and restore everything the way I had it before. I understand I cannot restore between different ROMS.
If backup is not possible, what is the best way to go between Stock to Custom, then between different custom ROMS without reloading every bit of data?
Sprint HTC Arrive
ROM: LEAD ROM 8779 6-26-12
Sprint Touch Pro 2
Windows Mobile ROM: LEAD ROM Sprint
Overclock: 748Mhz via WiMoSpeed
Android Overclock: None Currently (Sometimes 710Mhz)
Memory: 8GB microSD Class 2