In the last example make sure they are properly following the contract in conversions. a conversion is an assignment and follows assignment order aka if there is another LCR with also 2 days left (or even one in this case) then they must follow the order which includes seniority as well.
Most bases don't have enough LCRs to ever sit in the same amount of days off as other LCRs but I know FLL it's pretty common.