If I wanted to do a compete wipe including all internal SD data, but not lose Root, I would do the following???
wipe data / factory reset
wipe cache partition
wipe dallvik cache
format /preload (unsure about this one, can't find info)
install rom then from my ext sdcard1
install gapps then from my ext sdcard1
reboot into a clean phone and start installing stuff again.
That should be enough correct? I'm not sure where CWM Recovery lives but I would assume that would be on the /boot partition and that is the one section that I don't want to format, correct? I'm also not sure of where the modem is set/installed and would that need to be reinstalled again?