I have had some luck jigging for blackmouth in area 8-2, and having mooched at mid-channel bank, I wouldn't hesitate jigging there as well. However, if you get too much tidal current, it can be difficult to do effectively.
I prefer using Point Wilson darts because they come in a number of different sizes, weights and colors. The one I use most often is a 2 1/4 oz. candlefish, in white, with a slight bend in the bottom section of the jig. I trade out the treble hook for a couple of 2/0 siwash hooks on a split ring (facing opposite directions) and use powerpro to minimize the effects of the tidal current.
Also, be sure to add a good sampo swivel in there somewhere, or the fish will have a good chance of rolling off the hook.
I find that my best luck has been right on the bottom, but I have had blackmouth strike at the jig up in the water column, even right below the boat as you first drop your jig down.
The large 5" buzz bombs also attract fish and seem to work at least as well as the PW Darts. But the 5" are very large and the 4" don't seem to have enough weight to really stay down where you want them to.
Looking forward to hearing tips from some of the others on the board, as I really enjoy this method of salmon fishing - it nice to enjoy the slow drift and then wham, fish on!
Thanks for starting this thread Fun5!
PS: I just picked up the new High Speed Ambassadeur 7001 with jigging in mind. Unfortunately, I the only hookup with is Sunday was a squid I found right on the bottom in about 100' of water.