Back to your netting question: I can't help with the type of netting or where to get it, but something that you need to consider is how/where this would go. You don't want to dump the BG into a netted area that has bass in it. Sounds simple, but often overlooked. The net would have to hug the bottom very good. You probably would have to start along the shoreline and push the net out to force all fish from being inside the net. Why I mention this, if you don't have an appropriate place to do this, then why look into it further.
A lot of us have used that plastic mesh screen for fish cages. It's not very pliable for uneven terrain on a pond floor.
Yes, obviously you would use the block netting to "reverse seine" the area. I have an area that is flat and fairly free of structure that I am looking at. Still trying to decide if its worth the effort.
