How to stone fist just/how to properly use iron fist SCV

I'm highly upset with the whole yoshimitsu move set for SCV i really dont understand why whould they do that to him but i guess i got to deal with the new guy and well all i need to know is how to use ironfist properly and stonefist(just) or any spinning move just 

and yes i just became a fan but i always liked yoshimitsu since back in the day