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I could not access the Zoom --
I also had my wife - the family expert- to give it a try
Sorry I messed it
And I am the one who needed the advice most
The video is no longer available.If you happen to use Facebook (doubtful but thought I'd mention it), it is available on the Facebook page of the shop that hosted the presentation: Link to FB video
You'll need (or need to create) a FB account to watch that video.
The presentation is reversed in the video (mirrored incorrectly on the phone shooting the video) but @NothingClever can provide the deck upon request.
Another way to find it, again for FB users, is to go to the page for Off The Wall Adventures & Outfitters. You'll find it there.