This is a nice pre-bonsai JP maple I've had for a few year. The last growing season I just let it grow out as evident by the overly long shots on some of the branches. I really love the trunk on this tree. It's very graceful and elegant with reasonable nebari. My problem is the upper part of the trunk. After the leaves fell it appeared drastically straight compared to the lower part of the trunk. My initial thought was to chop is and regrow a leader (the red line in the pic), but I'm also tempted to chop a little higher (the yellow line) and grow a new leader that's defined in black. The second possibility is easier to see in the second picture which is from the side. Any thoughts?