@jetter...thanks for the reply! You didn't miss anything, I forgot to post my findings, sorry.
I have a system in one of my record rooms that I use for cable burn-in. I put a little over 200 hours initially on the "G" version and swapped them into my main system. I actually preferred the original version better, (these have thousands of hours on them). So I took out the "G" and put another 300 hours on them for a total of around 500 hours. Put them back in and really couldn't tell any difference at all. Both sound very, very good. I really tried to hear an improvement, but it just wasn't there. Maybe, if the "G" had the massive amount of time on them that my regular cable has/had, there might be a very slight difference...just speculating though.
If I was to start from scratch, I would probably go ahead and get the "G" version since they are only like .50 cents more a foot, but if I already had the regular version, I see no need to replace them.
I still feel that these are INCREDIBLE cables and sound as good if not better than cables at many times the price, (and yes, I have been there, done that many times over).