Don't buy Salmon Stalker, or Steelhead Stalker floats, And droppers off of your swivel should be pretty short, as to not interfere with your leader. Also bank sinkers work well, but cannonballs seem to do the jod and do't get tangled as much as I initially thought. So I use 'em.
The Wilson should be on the rise here shortly, and if it starts below 4.5, and rises up above 5, it should fish really well. I hook a ton of Steelhead in that river between 600, and 1100 CFS this time of year. If you target Steelhead in the Wilson, look pretty close to the bank on this rise, and drift small baits, like coon shrimp, or small presentations of eggs. Those fish don't like big globs of eggs on the rise usually. But like most places, Peachy King yarn, with a bit of black, or white, drift fished with just enough split shot to tap once or twice, always hits one or two for me anyways.
But there are some nice pockets to float fish. And you want to make sure you cover the whole, hole... Get it? Cast to the far side, and let it ride the wall lets say, then next cast let it drop 4 feet closer on the far, upstream side of that boulder. Next cast on the closer, upstream side of the boulder, and so on, so forth. Cover all of the water you see in the hole you are fishin. The fish are going to be holding tight to the bottom right now, so having a properly set float system is imperative. Good luck!