Recently I took some advice from this forum to tilt the nose of my saddle slightly upward. This pushed my rear-end back a little bit, which then took some weight and pressure off my hands/arms, thereby creating less tension on my shoulders & neck. The extent to which you tilt you'll need to tweak with a bit to find what's right for you, because if you tilt too far back then the additional weight will just be displaced on to your butt and then your butt will hurt much more than usual. Do a search here under "saddle position" and you'll see some interesting things. I feel like, for the first time in a long time, that I am finding a position that is going to keep me comfortable for hours at a time and days on end. Good luck! This is a good place for advice, and much of the above mentioned things are proof of that.