The trick to Alpine isn't location as much as it is leader length. At the dam, you have to remember that there is a deep channel that runs all the way to the houses. It's important to figure out where this is to catch fish on a regular basis. Color also has a little to do with it when the water clarity changes. 3 feet off the bottom has worked out great for me for the most part, unless the weeds are a little think. Then you have to go a little longer in leader length.
With the water level low and the fish feeding up high, you may need to have a little stink on it as well. I've arrived at the lake in the middle of the day with people shoulder to shoulder. No one catching or getting a bite. Just to limit out in an hour. You want to talk about dirty looks!!!!! But they all are pleased when you just share the secret. Good luck and tight lines everyone.