Softbody for head Model sinks into ground

[djones2]

I made a softbody for a head model, the softbody setup is the same as the Full body volumetric simulation sample scene, when i enter playmode the softbody just sinks into the ground, is it the solver or softbody that is the problem, i binded the skin before i entered playmode. I attached screenshots of the settings, A video showing the effect can be found at https://drive.google.com/file/d/11gGaQRC...sp=sharing