Id rather work at aldi than be told to work 8-5 day in day out plastering do the occasional long day but very rare these days..gps is rite in same amount will be done,if I was you id set my stall out at start of week/day and if its finished and quality Is still there wat does it matter..he will be happy and your still making the same amount of money he will just work faster during day to make sure he gets done wat u agreed at start of week