If you put your profile from an online retail Xbox to a JTAG and earn achievements on the JTAG can your online profile be banned/reset when put back onto the retail Xbox?
Aslong as the achievements are in the right order your all good,you cant get banned for offline cheevos but if there in order your fine,plus do not sign into the profile when on dashlaunch,xexmenu or FSD always sign into the live profile when you have started up the game
I'm with sideshow, I have been doing this way for a long time and have no problems, but just make sure you sign in with your live profiles when the game starts.