Thanks for the kind words guys! I really appreciate it!
The knee riser is one made by MAC1 here in the USA. I've been using those for several years now and they work well. Will probably develop one of my own before too long as there are some things I would like to do differently.
Barry, the bum bag is still working like a charm! Kind of like shooting field target from my favorite recliner. It is a dang nice piece of kit for sure!