I pay from start to home, but not any extra than 8hrs aday, we sometimes finish a little late, but that's time back for day's we finish early.
Everyone wants security and to know how much they will have coming in each week. When I first started out, I only paid days we worked, but I found it difficult to get people to stay, I wouldn't work for anyone not knowing what I was likely to earn!
The guy with me know is guaranteed his wage weekly regardless, if we can't work for whatever reason, I keep him busy with something else.
Rob.