I think that's something that's best described by "you know it when you run into it" perhaps at the time when stuff starts getting away from you. I have never

I think that's something that's best described by "you know it when you run into it" perhaps at the time when stuff starts getting away from you. I have never used these for client work. My concern was that a client might insist on using these despite your preferences. So, as a freelancer you should be familiar with them because they can have a bit of a learning curve.