As J_Mac said, that ball would be easy to drill for a lefty since the CG is so far right of the pin-MB line. The driller could put the MB almost anywhere left of the thumb hole (for strong-MB balls, right of the thumbhole is generally verboten) and not need a weight hole. Less easy for a righty because putting the MB right of the thumb (for a righty) means putting the CG pretty far out. Depending on TW, it may be impossible to get enough side weight out.
SH