I think in this context, Johnathan Greene refers to "production panning" as a statement of volume of material processed at a high speed. Typically panning is very slow if you try to take it all the way down to nothing in the pan but gold. If you shovel gravel from a location into a pan and then pan it down to the gold, you probably won't make much recovery in a day. Using a sluice is typically at least 10x faster. More material processed = more gold recovered with all other things being equal. Production Panning probably means don't try to clean it all the way down. Just remove say ~80-90% of the lighter material and save the rest for later. Same thing you do with a sluice or a dredge. Spend your time at the river as efficiently as possible. Concentrate your material down as far as you can quickly, then take the concentrates home and do the tedious job of cleaning them down to the gold at your leisure. Don't waste time on the river trying to do this. Only do this for your sample pans.
The pyramid pro pan is sold as a "production pan". I believe this means it processes about the same amount of material as a sluice in a given time frame. I can confirm this is a reasonable statement. You would never use the pyramid pan to try to get it down to just gold. The pyramid pan is a concentrator.
Hope that helps.
Hey good idea sending cons to folks to infect them. Never thought of that. I'll try that on a couple of victims and see what happens.