A few months ago there were a bunch of forums about having to update all SCT HAND HELD TUNERS!! And alot of people were having trouble downloading back to stock, or reloading there tunes and had to get intouch with SCT TO GET THE PROBL WORKED OUT' I already had all my tunes put on my car! I never went back and updated my SCT. Is this something I should do? My 1012 5.0 run great ! What do you all think I shod do???