I have used the toolkit as instructed on several different songs with the 100% bug , firstly changing the version number . This worked and the 100% bug was fixed, but user stats were reset as expected . I then tried your suggestion and repeated the fix without changing the version number , this also appears to have removed the bug but also preserved the songs stats . Is there a way to due this in bulk without changing the version number, by the way all the blank chord windows were filled in all of the converted songs .Many thanks for all the work that has gone into these fixes .