Min, I don't use that much water. I have not been in clay that long (7 yrs) but this is truly the first time I have had trouble with s cracks. And because I like adventure, I switch up clays and use a speckled brown clay and sometimes a red clay. Nary an S crack to be seen. Like I said, I am trying to examine my throwing and compressing technique to see if there is something to be learned. Thanks for the question though.