For those who were born yesterday...
Once upon a time, WGT was banning people cause they were hitting too many dings (according to them anything beyond 65% was humanly impossible).
Once upon a time, WGT was banning people for hitting consistently low 50's without further explanation. People of the highest tier.
Now it's perfectly normal a tour pro to hit -20 in SD while usually hits 68.
Live long and prosper!!!