DS2 seems to prefer my left breast. When I bring him to the right, he will latch on, but bob on and off, choke, sputter, arch his back. On the left, there is no issue. He could stay there for days! If I lay down with him, he has no problem nursing on the right side.
Is it possible to have a faster letdown on one side? I don't remember having this issue with DS1, but it has been a while!