With respect to that last entry, there's also capitalization and hyphenation to consider. If I write "one of a kind" and then stroke HAO*IPB three times, how smooth is the redraw? How do we make Plover understand that it needs to hyphenate backwards, skipping words that are already hyphenated? So with each stroke we get "one of a-kind", "one of-a-kind", et cetera, until it's full up. The response needs to be quick and natural. Most people don't count how many words they want to hyphenate; they just stroke the command until things look right.