Brisnet Data Customers Brisnet.com publishes a factor in their data files labeled as Prime Power. Prime Power is available from the factors drop down of the UDM Wizard - making Prime Power "grab-able" for use in UDMs for Brisnet data customers.
HDW Data Customers HDW publishes a factor in their data files labeled as PSR (Projected Speed Rating.) PSR is a "grab-able" factor and available for use in UDMs for HDW data customers.
If you are an HDW data customer, be aware that PSR isn't labeled as separate factor in the UDM Wizard or Data Window. Instead it is labeled as "Prime Power."
If you are an HDW data customer, to use PSR in a UDM, select Prime Power from the factors drop down in the UDM Wizard. (The program will know that you want PSR and will handle things accordingly.)