2) Where you've bound your joystick button for zoom in/out I believe there's an advanced setting (not at my PC at the minute to double check). Default I think is set to 0,change it up to 2 and the zoom will be much smoother. Il try help more if required when I get home from work later. Best of luck.
They shall grow not old, as we that are left grow old:
Age shall not weary them, nor the years condemn.
At the going down of the sun and in the morning
We will remember them.
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