(This item pertains to the Edit Probe Data dialog box. You can open this dialog box with the Edit button on the Probe Utilities dialog box, accessible through Insert | Hardware Definition | Probe.)
If you're using tip averaging, additional Diameter, PrbRdv, ScanRdv values appear to show what the values would be if size averaging is utilized. For information on tip averaging, see the "Probe Setup" topic.
Because Fast Probe Mode is something that only applies to individual hits and not scans, ScanRdv does not exist for Fast Probe Mode.