There is a post from the guide Tarponfly on the white bass section about fishing Lake Fork at night with a green light. He says in addition to the sand bass limits, he catches a lot of big largemouth. You might give that a try.
I'll be going over there next week to fish with my green light at 515 bridge. You're welcome to come along. I'll be throwing bass back, as I will be targeting crappie.
John 21:3 Simon Peter saith unto them, I go a fishing. They say unto him, We also go with thee.