Controlled rest,
SQ Cargo is actually one of the best kept secret in the industry. For just flying 50 hours per month you will get around 12000 USD exclusive of the per diem and the 13 month basics plus the profit share( they do pay a profit share despite making a loss in cargo division) and this is a local term. According to APC site, a senior UAL 744 capt with 190 per hour will required to fly 63 hours to get 12000 USD.
Talked to those that flies for them..you will be surprised that most actually loved it.