Agree with this, I'm working on The Real Me right now and I'm definitely not fast enough yet. Makes The Trooper easy now. As far as figuring out the notes, there is a guy with a youtube who plays it note perfect, so I try to watch what he does and am using Songsterr a little bit. Overall, I found Zeppelin songs more difficult to play than others. Black Dog is easy to remember, but just fast. On the other hand, The Lemon Song is near impossible to remember, and not easy to play either, although my first year playing bass I was able to get to the point where I could play the first 3 minutes note perfect, too bad I can't remember any of the riffing anymore. Traveling Riverside Blues also gives me a lot of trouble, it's fast and the timing is difficult. Metallica Master of Puppets and That Was Just Your Life are extremely fast as well and wear my left hand out pretty quick.