Ya thats what it looks like head on.

Im just not sure if im using the mirror skin weights correctly. The tutorial dosent use it and I read about it online so I was trying to get it to work. It worked when I did the upper arm and mirrored it perfectly.

Once I cmd-s and exit out and come back in would that cause it to not work if I tried it once it had been reopened or does that not matter?

The whole skin weights can be really tough sometimes.