What i do is.
-I always have 2 rvforest.dat files
-One on my desktop and one on my sd card \wiisaves\ruue\
-With the ACToolKit i always edit the file on the sd card. (This way all you have to do is click "save" on the editor, exit, then "safely remove" the device.)
--When i load my game, if it crashes, i simply copy the file from my desktop and overwrite the one on my sd card
--When i load my game, and it doesn't crash, i copy the file on my sd card to the desktop and overwrite my file on the desktop .
I think that may be the easiest and fastest way