iRecruitment - When an external candidate is hired what is the best practice regarding their FND use

when an external candidate is hired, what has been considered the best approach with regard to the user account?

End date the iRecruitment External Candidate responsibility and add the iRecruitment Employee Candidate responsibility

Employee should not use their external account for internal use, and therfore a new internal account should be defined (person record clash means that the securing attribute will need to be removed from external FND_USER account)

As per 2nd option, but external account should be end dated until person leaves / end dated a set period of time after person has left?