Evenin'!
I think I was in the same boat as you about two years ago. I fished the lake obsessively for about a year, mapping out structure and trying EVERYTHING under the sun… many many hours. I even did a couple tournaments, but never once made it to a weigh-in… this only further fueled my fire! I still give it a go from time to time, but lately, have been making an hour drive south instead.
Pretty much what I've learned:
- Yes there are big bass… and the guys that catch them can do so consistently. It's all about knowing where the right structure (brush pile) is at.
- Focus on brush piles, mainly submerged cedar trees.
- Stay shallow (1-4 ft, usually, but I've heard them caught on brush up to 8 ft)
- Docks are always worth a shot, but they are few and far between
- Points are ok when fishing is active and lots of bait… but focus on brush piles.
- Ignore standing timber. You'll flip it all day long and get nothing.
I've caught a bunch of fish at Thunderbird, and on a good day, might catch 8-10. However, they are usually either different species (white bass, saugeye, crappie, catfish), or non-keepers. My best [bass] day on Thunderbird came during late spring/early summer, and I caught three keepers… yes, THREE! Largest was no bigger than 3 pounds.
My go-to is a chartreuse spinner bait, colorado blades, one with bright orange paint. Can also do ok with chrome rat-l-traps and the occasional crank bait. I'm a die-hard soft plastics guy, but I've never had good luck with soft plastics… blows my mind. My next trip out, i'll probably focus on the rip-rap at the dam, as I've never given it much thought but actually offers some of the better structure on the lake.
I'd be happy to discuss more off thread or even go out there some day if you'd like - I live/work in Norman.
Tight lines!