Well, arms tied straight down along the sides works well. Leaves everything open. Wrap the rope around the midsection and loop it around the wrists to secure them. Also, arms crossed over the chest works well, if you don't mind access to the breasts being a bit restricted. One of my exgirlfriends also had shoulder problems we had to work around. My fav is lashing the wrists to the ankles. Forces the ass up in the air in the most apealing way, and I am an ass man. They just pretty much rest on there knees that way. There are lots of ways around the shoulder thing. Just make sure you you try a few of the postions out with a very loosly tied rope to find which one is most comfertable for her, and if you are going to play that way, make sure you got a safe word set up and any and all limets are set before hand. Have fun.
