The city I live in does a spring brush chipping project where home owners can do there own pruning and put the branches in the alley. The city then hires a contractor to go down all the alleys and chip the brush. It is bid on a per unit basis. In this case per tonne. The contract hasn't been officially awarded yet but I was low bidder this year. At my rate of $xxx per tonne I will gross approximately $xxx per load of chips. In the newer areas of the city I'll be lucky to get a full load in a day, but in the older areas I'll be able to get 4 (5 in a couple cherry areas that are close to dump scales and dump sites). I bid low based on averages. Some guys came is as much as $100 per tonne higher than me because of the light areas where they can't get as much tonnage per day. The way I bid it I might even lose money a couple of days but I make out quite well in the end. The contract averages 300 tonne and we'll get it done in a month. Thats $xx,xxx for 3 guys with 2 trucks and one chipper in four weeks. I don't know about you but I'm very happy with that scenario.