Would Han still shoot first?

Squeezed in a little writing time today, around work and other things. Only about half an hour, but at least it's something. Trying to get the motivation and time to write to line up together has been an exercise in futility for the longest time, so I'll take what I can get, even if it does happen when I really should be getting reading for bed, and I have to stop because I really do have to get up the next morning and go to work. And Darth Vader and Han Solo are still trapped in the turbolift, but at least they are threatening each other talking. This is a start.

Anyway, this got me thinking about Han Solo's character, and how he's changed/not changed through the saga. And since I know my flist are all intelligent and discerning people, who understand that Han Shot First, I have a question for you all.

Would Han still have shot first, if the Greedo scene had occurred at some other time in the Saga? Would he still have shot first if it had happened between A New Hope and Empire, for instance, or just after Jedi? 10 years after Jedi? At what stage (if ever), would the respectible-isation of Han Solo stopped him from shooting first? We all know that he'd still shoot last, but would the changes in his values (the reaffirmation of the value of friendships, standing up for your beliefs, true love, all that jazz), change his instinctive response to the situation?

Feel free to include or ignore the EU in your responses - whatever floats your boat. I'm just interested in other people's thoughts.

And now I really, really need to go to bed.