Trolling Question

Trolling two harnesses on one line sounds like a mess waiting to happen to me. 3 rods per angler allows you to run 6 anyhow so why bother IMO. General rule of thumb is 1oz per 10 feet of water, but this is only a general rule. If their are high weeds then you don't want much line out or you will tangle obviously, line counters can be helpful in this situation sicne if you let 40 feet out and get weeds then you can try 30 feet etc. I am usually running BB's in the river or deep channels with little weeds so I slowly let the line out while trolling forward just a bit faster than the current until the BB hits bottom then I lock it in and keep trolling. The BB will raise up a few feet off the bottom after trolling forward for a few feet and this prevent most snags. Sometimes if that is not producing I will literally bounce bottom with them by letting more line out and locking the reel until I see the rod tip indicate a bottom tick every once in awhile. This is how I do it but their are a thousand other ways to, good luck!