i need to extrude the back shoulder to start on the arms but the edge is arching, causing a sharp edge. how do i get it to be flat for the base of shoulders or arms?
You can scale down to 0 along a specified axis. Here are some tutorials that may help you if you want to model a character:
http://cgcookie.com/blog/2010/03/31/topology-review-shoulder/
http://www.youtube.com/watch?v=lb0EG02Xn50
Ill take a look at those videos thank you