I can never remember which way to take off wood to fix twist,,maybe some heat as suggested,, and bend the handle area a bit to line it up,,,you can see how much the tiller changed when you strung it, thats why I just use the long string tiller as a very rough guage,, if you can get some of the twist out,, it will still shoot good with some twist,, but it looks like you are moving in the right direction,,