A drag-free drift is more essential than jig color, size, and many other factors. I've seen steelhead caught on some pretty offensive jigs that are being fished right. Tie your jig to run paralell to the bottom (I use a palomar knot) you will have to readjust it every so often but I believe that is also crucial. Don't let your jig drag the bottom, keep it in their face. When that float goes down; reel, feel, set. You don't want to whiff if you have some slack in your line.
Just some tips that might help you.
Good luck!