I've never fished the Narrows, but have heard good things. I fished Shafer Bend last year and caught several female whites and some largemouth. It was nice because there weren't any people fishing. Yesterday, I went out to The Steps on the San Gabriel above Lake Granger. Didn't catch anything and didn't see any fish caught. There were some whites running early a couple weeks ago, but I think the two days of cold weather cut off the run. This weekend should be okay with the increasing temps this week. I only fly fish and have no problems catching fish if they are there. I use minnow patterns like shallow water clousers and bc streamers. For conventional tackle, I would use white, white/blue, white/silver crappie jigs. I prefer 1/32 oz., but 1/16 should work as well. Fish the jigs right off of the bottom. You can also drift the jigs under a bobber, just make sure they are deep enough. I try to find a concentration point as opposed to open water. Once I locate the hole, I'll fish it over and over. Eventually, a school will hit the hole and I can catch several in a row. Good luck and be sure to give a report - good or bad. Eta - looking at the aerial, I'm not sure the spawning whites can make it up to Shaffer Bend this year. The Narrow might not work either. The Slab at Kingsland might be a better bet.