The above comments are good techniques and ones I use myself to catch plenty of fish out of BS and the Letort.
Another thing to consider is they will move for your streamer a very good distance. I have shown people that fish in Big Spring will swim upstream a good 20 yards to take a streamer. That water is very clear and the fish can see a very good distance.
Your best bet is to toss the streamer to the far edge of the creek, well away from any fish you are targeting, then pull it slowly into the zone that is in "line" with the fish, jig it and release line out slowly to get it closer, let it sink to the bottom then lift and let it drift down closer, over and over, if the fish starts to move for it then strip strip strip.
A sculpin pattern is great for this because they lack a swim bladder and it mimics them pretty well.
they will come.