Thanks, Don. My brain hurts too much to reply. :) I think Yoyo nailed it in his reply. Treat P as N seems to do the trick. Ken Don Veino via Callers <https://www.mail-archive.com/search?l=callers@lists.sharedweight.net&q=from:%22Don+Veino+via+Callers%22> Fri, 06 Apr 2018 15:36:07 -0700 <https://www.mail-archive.com/search?l=callers@lists.sharedweight.net&q=date:20180406> Hi Ken, I've never called this one, but this is my take on the end effects from a quick review (what the heck - the worst that could happen is I'm wrong!). -Don