Change of Clay Body

My enthusiasm for Standard Ceramic Company’s 563 clay body has been short lived. Upon going to get a fresh batch this morning I was informed that it has been discontinued. I am now in posession of Standard’s 220 clay body. Supposed to be very similar, but I will determine that. I liked how well 563 vitrified, so I guess I will try 220 to see if it does the same.
I am a bit upset that I can no longer get the clay body that I prefer, but I guess things change and nothing stays the same.