The requirement to take the Human Performance exam is no longer stated in LASORS - presumably it is intended that suitable questions will be set in the Oral Examination to be taken with the LST (Licensing Skill Test).
LPC - Licensing Proficiency Check. One option for the revalidation of a SEP Class Rating. The LST is required for renewal.
There is virtually no difference in the content of the LPC and LST, although the LST will probably require more navigation. But the manner in which they are conducted is supposed to be slightly different, with the LST being more of a 'test' than a 'check'.....