One thing I was doing wrong (maybe I was the only one) is that I was left clicking when the bobber went down those first times, when it goes down and comes back up very quickly. Then I realized that you're supposed to wait, it does that a few times and then it remains under water for a longer time and that's when you left click. xD
Yeah, I can see that. Actually, congratulations because that’s been something that got buried in my mind a long time ago and your mentioning it just spurred me to action. I just altered the animation slightly so that the bobber doesn’t really go under until you actually need to click. Hopefully that will be more clear.