I have one of the first GB SE's that had to be re-calibrated, but it always had the ground grab and the ability to manually ground balance in all metal via the + and - buttons, as well as the modulated audio, so I am not sure what version prior to that would not have it.
Also, what is the deal with these software versions...what enhancements/new functions are in these newer releases ? Or is the newer software just updated for the issues it had on the first release ( ie, could not hit on big silver due to the ground balance adjustment along with a few other things)
All I know is, mine works great...whatever version I have !
JC