NigelOnDraft
You should know S, F, and displayed VFE come from flap lever and not from actual surface position so they are to be ignored when jam occurs. Only speed that matters and is correct is VLS. As long as you are above that and below calculated VFE for the flap position you don't have a problem. Airbus has clarified that all speeds up to VLS are safe and this subject has been discussed before. To calculate VFE if flap is stuck between 2 and 1 it will be 200KTS (next higher position). But when this occurs you don't start thinking but first pull speed. You may adjust it later. You will be well below the displayed S speed but that speed is invalid. After ECAM just follow landing with slat/flap jam procedure.