I've found a problem on the RCS version of the map, using Precision Farming with harvest contracts: the amount of grain to deliver is not calculated correctly. I've accepted a soja harvest contract on a field around 4 ha, and after delivering 2000 liters (around one headland lap), I was already at 100% delivered for the contract. Tested on a new save with only the map, RCS addon and PF addon.
If I'm using Better Contracts to see the details, the contract shows the correct amount before accepting it, but show the wrong one after you accept it.
Not sure is it's a problem with the map or the RCS mod.
EDIT: I've just tested with the non-RCS version and I don't have the same problem, so definitively a problem with RCS mod