that would seem to rule out skullys. Some rule them out explicitly.
I would not want to be the outlier organization in this. Some poor lawyer would have a field day.
I thought once one organization ruled them out, the others fell into line a few years back, but don't quote me on that. There may be a few renegades or locals that still allow it. Haven't done a USSSA in a couple, but I thought they allowed it after 12. Not sure if they still do.