Unfortunately most of the waterways I work on are small, 10-20' wide and +/- a foot of depth, 2 at the most so I don't think those systems would be ideal, plus they're probably spendy. Damn, there's no magic solution....yet.
I think we posted right about the same time or I wouldn't have reiterated the link request...
Thanks for posting and good luck with your own research! I see many hours on the banks of streams for you, nice going!
Yesterday's gone on down the river and you can't get it back. - Agustus McCrae