Decide what fish you want to concentrate on --- Early March is generally a pretty tough time to catch fish --
read what others have said in the week leading up to your trip-- pick the best set ups for the fish you want to target.
Right now -- stripers -- back of canyons -- spoons, bait or trolling deep divers.
Large mouth / small mouth -- grubs, jerk baits, drop shots fished real slow in rocky areas.
Do not come if catching lots of fish is the main reason -- if the main reason for coming is to have a good time, seeing the best lake in the world, and maybe catch a fish or two -- make the trip!
Given that this is your 1st trip, you will more than likely spend more time just admiring the scenery than worrying about the fish.
I fish the lake a lot -- I was there 2 weeks ago --- fishing was very slow, but I had a great time doing a few hikes and just watching the sites -- In 2 days I think I caught 3 fish. It was still a very successful trip, and I am heading back down this weekend just because it is a great place to be.
Maybe I catch more fish this weekend -- maybe not. In the end, I do not care-- just being there is worth it.
If you want to be sure to catch fish -- come back in April.
After your 1st trip, it wont be hard to plan another.