I've never done it. I'd say leave it at the defaults unless you absolutely know you have an issue. Further, it's unlikely that you have a thread issue unless you're running things like Availability Groups or Service Broker. So, until you get there, focus on other areas. Thread management is WAY down my list of concerns on the majority of servers I've worked on or consulted on. But, if you're seeing queueing in areas that are likely to be thread specific, then you might consider checking further.