In the short time that Robin Clements has been in milk production, milk price and production costs have changed dramatically, but keeping control of cost and achieving good technical efficiency has helped him to grow his business.Switching from beef to dairy meant that he had a significant investment in buildings and slurry storage, even though he minimised this with extensions to existing buildings and converting straw houses to cubicle sheds. Robin has no doubt that the most important investment made so far has been in grass reseeding, land improvement and grazing infrastructure on the home block.