Trigger for cubic rates / dead weight, whichever is higher
Special use case if the client has different weight rates for dead weight vs cubic weight.
Create a new selection on freight items
one should be the dead weight rates
second is the cubic rates
Place an override on the default rates.
On the alternate freight item selection, select the title name of the rate you would want to be overridden
Place filter rule: TotalWeightGreaterTotalCubicWeight != 'Yes'
Above rule will work if you are looking only trigger a specific freight item without a specific parameter