This shot took years to get. Years of patience, of watching water, of learning how it forms and how it falls. There are drops that fall frequently... but they lack form and fall straight. And there are drops that NEVER FALL!!
The key is to watch the ones that pool a bit. That gather slowly and steadily. It can be very time consuming, and it's hard to not get distracted by all of the other drops falling in the periphery. I've been seduced many times, shifting my focus to what might yield faster results, only to miss what I'd been waiting for.
But if you stay focused on what you want, eventually... magic. A bit like life. Funny that.