Need help with a rule reference

[SAump]

Welcome Tom, you raise an interesting point.
I wanted to add another comment about the OP that is well understood by many here.
If I understand it correctly, IIITBTSB = It is impossible to balk to second base,
or YCNBTSB = You can not balk to second base, or OCNBTSB = One can not balk to second base.
There is further discussion about this topic on this website.
Some may continue to believe otherwise, but it is generally accepted by all.