I firmly believe in NOT taking place in line; always thought that's a good way to get rear-ended.
I go to the front on the right side of the left turn lane and wait slightly in front of the first car.
I also signal my intention to turn.
If the oncoming driver is too stupid to deal with that hopefully they will figure it out after I've made the turn and the world hasn't ended...
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Today, I believe my jurisdiction ends here...