Interest was such that Gary has made a pdf of his presentation for members to download, should they wish to do so.
It is only a tad over 2mb in size so won’t take long to download nor use much bandwidth.
You can find it here
Gary referenced a video by Gavin Hoey in his presentation that you can view here
Gavin Hoey also has a related video here that deals with photographing waterfalls and one here that teaches you about how to get silky smooth water.
Please get in touch with problems or suggestions via email.