Gus, that's a nice story and you had a rich experience for a good cause. Just like every other type of fishing there are a ton of variables that can turn off the catching. Blind casting in the muddy water of a big flat featurless saucer of water is also a pretty daunting proposition but you stuck with it and toughed it out. That same spot 1 day later could be packed with hungry reds and the problem would switch to arm fatigue from fish fighting rather than blind casting. Sounds like you'll be doing this kind of thing again now that you've gotten a taste.

Ken