I generally saw by the hour, too... and charge setup & breakdown as part of the time. Also $1.50 per mile (one way) to discourage small jobs. I keep track of board footage so I can tell the customer how much per board foot he paid to have a given log sawn. Generally, I try to cut the best logs first, then work down to the smaller, scrappier logs, which take more time (thus costing more per board foot). If we get to the point where the lumber is costing more than the customer wants to pay, we stop at that point. Check with insurance before allowing a customer help. There are a lot of ways to get hurt, some which are less than obvious. An inexperienced mill hand trying to save a few bucks by helping out generally costs more time than he (or she) saves, and they don't always use good judgement. Good luck!