There was a Thai fishing guide close by with his two British clients and they were catching fish after fish. The Thai was a good guy, he knew a frustrated incompetent idiot when he saw one and kept coming over to correct what mistakes I was making. Something still didn't seem right. I| was still more or less bite-less. The tactics I had used successfully earlier in the week were just not working out today.
I gave the guide 200 Baht (about $8.00US) to thank him for his time showing me what to do. Then, a funny thing happened. He perked right up and showed me a "super secret ingredient" he had been using in his bait. He even gave me some. In the last hour and a quarter I caught a fish, we had a delicious lunch at the park cafe and with 15 minutes to go I caught 2 more.
It goes to show, when it comes to fishing in Thailand it's not what you know it's who you buy your information from.