Create something different with the skeletal rig. Perhaps fan bones betwen the shoulder blades, it would be more difficult to pose, but much more fluid. Pay special attention to the elbows, knees, and hip, and neck area to achieve greater realism. Don't settle for Joint controlled morphs, or  magnets, do it with rigging. Rigging and proper joint parameter settings should be enough. You might use magnets to simulate squash and stretch, gravity, compressed flesh. They are also useful when a character bends, not for covering up poor rigging, but to simulate the pressing of flesh against flesh, which isn't present in many, models out there, unless you rig them in MAX, or MAYA, and set up muscle constraints, and soft body dynamics to simulate flesh.
Just a few thoughts.