If I run a morph search for imperfect forms with paragogic Nun in Westminster (@v?i????+S???En), Logos claims to have found 312 results when in fact if I count them I see only 309.
Also it seems that whenever a form is both apocopated and has a paragogic Nun it is not counted. i.e. 1 Sa 2:15 and Job 19:2. (I got this by using Accordance)
Search is unreliable!