Someone sent me THIS today, and my productivity went down the shitter. I'd put it right up there with the Yeti Sports line, for those of you who remember.
I'm struggling with which approach to take. The laser-beam Shaq free throw technique got a coworker past 3,400 points, and it got me past 2,300, but now I'm doing underhanded shots, and they're a lot more satisfying when you make one (although the time it takes for them to come down eats more off of the clock). I think if you can get good at the underhand shot, it'll be a lot more consistent than the laser-beam style, but I'm not there yet.