The co-operative has also completed an internal business review, analysing a range of data from the inaugural trials held across the Wheatbelt in season 2009-10.

The trials included community sampling stations shared by several growers and a range of individual on-farm sampling programs at different locations.

The on-farm sampling helped stimulate more efficient blending activities and faster delivery programs, by allowing trucks to certify their loads on-farm and avoid the sampling shed at the grower's local bin, and deliver straight to the grid.

CBH's initial analysis of the trials has considered a range of commercial factors and also taken into account anecdotal feedback from talks held with the CBH staff involved in various aspects of the testing.

Over the next fortnight, CBH grain operations will speak with the Geraldton zone growers who participated in the trials, to gather their thoughts on the topic.

CBH grain operations manager David Fienberg said a number of question marks remained about the future of the on-farm sampling, and whether the trials had been a success or failure.

"We are still in a listening phase; no decision has been made to extend the trials or introduce on-farm sampling on a wider scale next year," he said.

Mr Fienberg said CBH would reveal its internal analysis to grower shareholders, on a broader basis, at the company's seasonal update meetings later this year.

The seasonal update meetings communicate a range of current issues to growers.

The trial results, and the future of on-farm sampling, will form part of the overall discussion between company management and growers at this year's forums.

"We want to be ready by the end of March so when we go to growers on a broader scale at the seasonal update meetings, we can present growers with the results of the trials, warts and all," Mr Fienberg said.