Here are some pics. They look a bit different to me but heck I am wrong many times.
I have one 090 and 3 070s (in various states of repair). I have never needed to look at the 090 crank, but the 070s have both of the varieties that you have shown. The newest 070 AV has the extra weights bolted on, the oldest non AV doesn't and the "intermediate" non AV does. I wonder if it is an age thing rather than model type? Perhaps they modified the crank to reduce vibration sometime in the production run?