garyt1957 It's almost an exact copy of Triangulaid, except that Stefane says that the width of the triangle is different for players of different skill levels, widest for beginners and it get tighter and tighter for lower handicap players.
That guy seems to be setting up the alignment sticks using the grip as his guide, so presumably he's advocating for everybody to have the same triangle, which, again, would not be what Triangulaid is advocating.