One thing that I did when I was learning it, was to prepare a set of training locks. I bought two locks, diassembled then and reassembled leaving aside a numbe

One thing that I did when I was learning it, was to prepare a set of training locks. I bought two locks, diassembled then and reassembled leaving aside a number of pins out. So I had a lock with only one pin, one with two, one with 4 and one with all the 5 pins. It helped a lot because you learn to feel when the pin stucks on the open position and also to learn about how much pressure you need to put on the tensor. Too much and it will prevent the pins to go down. Too little and the pins will not stuck on the outer frame. Ahh, and ofcourse, see the lock diassembled over my desk, and reassemble it gave a lot more insight on how it works than to just watch some animations.