Sure, but does it account for a large percentage change? If their reference data is so limited that adding to it can result in monumental changes, then it is cu

Sure, but does it account for a large percentage change? If their reference data is so limited that adding to it can result in monumental changes, then it is currently inaccurate and a sham. If it isn't a large percentage change then lack of refinement doesn't adequately explain the significant variance across companies.