The technique of using the squiggle select to combine a group of strokes into a single character was easily learnt and understood. After being shown the technique once, all the users understood and used it without any problems.
From the user testing it was found that users are not bothered by occasional regrouping steps. This is possibly because grouping errors are easy to detect, in part because of the bounding boxes drawn around strokes that are grouped, and correcting them requires very little effort. Several new users of the system even commented that the method of regrouping strokes was fun to use.