Out prospecting again today. I think I did well, judging from the gold showing in those convex bumps. I built another electronic flow regulator. Now I have one for my cleanups and one for use in the field. They cost very little and can be constructed in plastic lunch containers available at the dollar store. You just need a drill, screwdriver, pliers, soldering gun and some velcro to mount the elevctronics in the container. ......easy peasy!