left hand, right hand or both ? most important thing is to stay relaxed Right hand. I play finger style/finger picking style, if that makes a difference, I can't use a pick. I generally use three fingers during the faster sections, but like I said, my fingers get pretty tired. I am making progress, yesterday my (right) hand was dead tired after playing through Under the Red Cloud twice, today I managed to play it three times before they gave up on me. :) I try and keep both of my hands relaxed, but do find my self tensing up from time to time. So any more advice? well, the thing about 3 finger technique is that it's easy to start to hit the strings with a lot more force than required, and you end up getting tired even faster than with 2 fingers... and that unexperimented ring finger can get tired easily too. work on that by playing stuff with constant 16th notes (power metal did the trick for me) and endurance will come in no time (pay attention to not making triplets or gallop though). Did you try to play it with 2 fingers only ? Maybe you will find it less tiring. And playing it with a pick will definitely be easier too ! I basically play with three fingers during the faster parts, and two for everything else. So I don't want to gallup? That's pretty much what I've been doing. I have a more long term goal of learning to play Iron Maiden songs, so I figured that songs like this would help with that. I would play with a pick if I could, but I just can't do it. That may sound strange...but I have a neurological disease in my spinal column that also affects my hands/fingers, and for some reason the 'picking' motion just murders my back and neck. So, it's finger style for me. I'll try sticking with two fingers and see if that is any easier. I actually started playing bass because I was losing fine control of my fingers, but playing has helped tremendously with that, so I really appreciate any tips and advice I've been getting on this forum, it's more helpful than you probably think! :)