our league went to being non sanction , but we have bowlers who need to be sanctioned for tournaments so the owner of bowling center is creating a sanctioned 10 week drop in league. so bowlers who bowl in non sanction leagues can join that league, can use there scores for the first 10 weeks of the nonsanction league and consider them as post bowling for the drop in league, since non sanction leagues are considered as open bowling. looks like a USBC loop hole.