Hi I have been playing a very long time, but never learned the art of Truss rod adjustment and intonation set up. I pay for a very, very good professional guy in my town to do it. I see all the time people saying its easy and you can do it yourself, but I watched a Youtube video about it just recently and it came under intense fire on comments about how wrong it was. I'm happy to keep paying my guy to do it for me, but should I really learn how to do it myself? And how?