I have flashed around 15 different roms/versions of roms and no issues but I have never bothered with apps 2 SD on any.
The general consensus seems to be pointing to the recovery method having a few flaws and that is what is causing random bricks. If you are happy to carry on flashing, good luck! I was unlucky enough to have a handset bricked and I'm just not brave enough to do it to my second